
I use GE Proton by default for my entire library, but this game works flawlessy with no extra steps.

No início ficava aparecendo "Sorry, something went wrong, for solutions please visit: https://support.codefusion.technology/tob/?e=88500006&t=DN0200000024&l=brazilian". Mas depois de muitas tentativas, eu consegui não sei ao certo como. Aparentemente abri outro jogo (Dragons Dogma Dark Arisen), joguei por uns 3 minutos, saí e voltei pro Tales of Berseria e funcionou. Antes disso, tinha tentado reinstalar a loja da Steam, trocar entre várias versões do proton, trocar entre driver de placa dedicada e integrada, diferentes drivers... nada parecia funcionar. Mas agora tá tudo funcionando normalmente na minha máquina, exceto por ter que reiniciar o jogo cada vez que troco as configurações gráficas porque o jogo trava.
Tales of Berseria has crashed a couple times if ive changed from fullscreen to borderless fullscreen and back to fullscreen so be careful doing that. Also this nvidia bug happens often which is kind of annoying https://forums.developer.nvidia.com/t/nvidia-card-sometimes-renders-a-previous-frame-on-wayland/274771
Very minor stuttering in the animated cutscenes.

Tried multiple proton versions, and same result. Click Play, the game loads for a bit, but the process kills before it appears.
Not Playable, but will update if I fix it...

Locked 50 FPS, TDP 9 watt
Audio sometimes crackled after resuming from sleep (game still running). After the release of SteamOS 3.5 this never occured again.
I get about 2.5 to 3 hours of battery life using these settings. Game does run stable at 60 FPS with rarely any dips, but capping it at 50 FPS gave me roughly 20 minutes extra battery, without noticably sacrificing anything.

Can't play offline due to Denuvo

OOTB. Surprised it is labeled unsupported. That's why I am here.
Too bad I finished this game before my Steam Deck arrives. Enjoy.
Played to completion without any issues

Lowering the TPD down to ~7 helps.
There's occasional audio crackling when waking from sleep, but it's only temporary.
The game runs at a smooth 60 and has some decent battery life without any tweaking

There is noticeable slowdown on boot, but the issue goes away after about 30 minutes. It's smooth as butter from them on

If you have some sound issues change to stereo in game settings.

6-7 watt TDP
Dialogue will not work if on "Surround" setting. Fixed by changing it to "Stereo"
Runs completely fine
In The Empyrean's Throne the game would crash after starting a battle or going further than the very beginning after quick saving and loading that save. Fixed by leaving the dungeon and entering it again. Quick saving in the dungeon again didn't cause any problems.
FPS sometimes dips below 60
Played and finished the entire game on the Steam Deck except for less than 1 hour on my PC.
Versions of Proton above 5.13-6 have several frame-passing issues, firstly in monitors above 60hz
Despite officially being unsupported on the Steam Deck, the games works great with default settings. Initial estimate on battery life was around 3 hours.
Game was smoother compared to windows. Only some light issues when trying to alt-tab in full screen.
В официальной схеме управления почему-то не работает прокрутка страниц описаний предметов. Исправил так: Настройки управления => Изменить тип устройства: Клавиатура/мышь => Категория: Общие => Описания: следующая страница - назначил сюда L4 (Стандартно стоит клавиша "C", и после изменения визуально ничего не меняется, но начинает работать)
Ранее проходил игру на ПК, поэтому знаю, что почти прошел сюжет на Steam Deck. Не считая небольшого казуса с управлением, ничего не мешает пройти игру, несмотря на статус "неподдерживаемой" в steam.
Ok out of the box on deck. Only 1 minor issue.
Sometimes crash while resuming from sleep/suspend
Run fine on my steamdeck out of the box.
Only one minor issue: crashes sometimes on resume from supend. So I now quicksave every time I suspend.
Ok out of the box on steam. Only 1 minor issue.
Sometimes crash while resuming from sleep/suspend
Run fine on my steamdeck out of the box.
Only one minor issue: crashes sometimes on resume from supend. So I now quicksave every time I suspend.
Reduced TDP limit, but doesn't make much difference
Picture is 16:9. Keep frame rate at 60Hz 60fps. If it's lowered to 40Hz the game slows down. Some minor drops in frame rate, but very enjoyable. Played 13 hours so far on Steam Deck.
capped the framerate in the Steam Deck settings to 60 fps
Works out of the box with capped 60 fps. Despite the fact, that Steam list this game as unsupported, it works just like playing on regular PC.
Game ran at 1/2 speed, had to set the FPS to 60 in the in-game settings, as well as limiting to 60FPS from the SD quick settings.

Full playthrough with no issues
- I had to enable the Vsync option in the game's settings (disabled by default), otherwise I had very noticeable screen tearing.
- I used the Tales of Berseria "Fix" mod strictly for the higher quality textures (disabled everything else in the mod settings besides that). The original texture quality is not terrible, so it's more of a nice to have than a must have. The only effect I noticed from having the texture mod was that new areas would take a couple of seconds to load the first time I entered them during that game session (it would not happen again until the next time I started the game). Without the mod this delay did not happen (I played for a while without the mod at the start).
Game does not start using Pop_OS store installation
Tried all versions of Proton and not a single one was able to launch the game. None of the launch options mentioned in this thread worked for me either.
Tales of Berseria ran very well on my Steam Deck. It kept a locked 60fps for most of my play time on it. I had no issues with it.
Slight performance issues due to Shader caching - which is normal. Felt like a native app all the way which I can say as I've played approx 3h before on Windows. Played 2h straight on Linux without any issues. Well done!
Switching from fullscreen -> borderless in-game breaks the game, so I edited the config file.
No issues so far despite being "unsupported" on Steam.
El juego funciona perfectamente. Desde tu biblioteca de Steam, botón derecho del ratón: Propiedades>Compatibilidad. Forzar uso de una herramienta específica: Sí, Proton Experimental. Volved a la biblioteca y donde pone JUEGOS, buscad HERRAMIENTAS, en el menú desplegable buscad: Proton Experimental. Botón derecho del ratón: Propiedades>Betas y seleccionad: Bleeding-edge.
¡Todo listo para juegar a Tales of (En PC Linux)!

Despite the "Unsupported" statut from Valve, everything seems fine and runs like native. Played several hours without getting any issues. Performance are great and videos are fine.
Excellent game and works great on the Deck.
The game launch after using amdgpu-vulkan-switcher and adding the vk_radv command to force the use of vulkan from the mesa drivers.
WINE_FULLSCREEN_FSR=1 gamemoderun MANGOHUD=1 vk_radv %command%

Starts well
Played with Proton 7.0-2.
Zero problems, runs great.
Ran almost flawlesly
On KDE Plasma WM triggering menu alerts gives squishes them games windows for a little bit.
Sometimes it crashes on Alt-tab when using KDE Plasma WM
I switched from KDE Plasma to GNOME. That fixed all of my windowing problems. However my setup has an NVidia GPU with a 2160p monitor and a 1080p monitor. KDE doesn't like this config in general.
Only played on the SteamDeck for about 10 minutes but everything seemed fine so far.