
Singleplayer Training Only, No Multiplayer Support due to "Could not connect to server!" Error
Only singleplayer mode (training maps) are playable. If you try to play any multiplayer gamemode the game will forcefully disconnect you with the error "Could not connect to the network!". This issue persists after many retries regardless of gamemode chosen.
Game is effectively unplayable as there's not much to do until the multiplayer gamemodes are fixed. Only the main menu and the in-game store seems to be usable.

Anti-Cheat issues
gamemoderun %command%
The game launches fine and menus work fine. Playing the tutorial the game runs butter smooth. However, it's currently not possible to actually join a match. Matchmaking works, however while joining the match I get an error message that reads "Could not connect to network!" and I get dropped back to the main menu.
My best guess is EAC is currently not configured to allow linux players and is intervening.

Very low FPS, at least in my case. It makes impossible to play and causes dizziness.
I think this game could be played without problems in Linux, but at least in my case, with my hardware, it isn't possible to play it without being dizzy because of the FPS (even lowering the graphics settings).
Also the game should offer better and mode specific graphics setting customization.
Could not connect to the network on online matches
Tutorial works great on Steam Deck. Graphics, Controls and Gameplay seem great on Steamdeck. I really had fun playing the tutorial and want to play more.
But (I assume) some anticheat automatically bans Linux players when entering the game, which makes the whole game unplayable.
Disconnects joining Multiplayer
Devs dont give a hoot, they abandoned proton support.
Well... Easy Anti-Cheat
"Network Error"
Cannot join any match other than tutorial, always says some network error, propably EAC problem.
Imposible jugar multijugador
Solo podrás entrar en el tutorial y el entrenamiento de vuelo libre, lo cual no tiene mucho sentido. No es culpa de Proton, los desarrolladores del juego deben modificar la configuración de EAC para que pueda funcionar.

Could not connect to the network
40 FPS in main menu but slowly goes down to 10 FPS

Could not connect to the network
Proton 6.21-GE-2

EAC.
Muppets changed functional settings, now EAC fails to work.
Broken due to EAC

EAC no longer works. Cannot connect to multiplayer servers.
The developers have adjusted the EAC settings in some way, which means that it no longer works on Linux. This game is unplayable.

Could loggin, play the tutorial but cant play the online match, every time you get just disconnected at the begging of the game.
Mouse working, but the right click inside the game wasnt... needed to restart it.
Couldnt play the online match, only do the tutorial.

Doesn't work anymore
Used to work with proton, but now you can't enter a match and begin playing Seems to be some changes the devs did with EAC
The game will be screen freeze after displaying the Unreal Engine logo.
Multiplayer does not work, could not connect to network.

Doesn't start
It seems the game doesn't even launch, not even a splash screen.
Tried on both Proton 6.3-8 and Experimental, same thing.
Proton-6.21-GE-2
When using proton 6.3-8 the introduction video would not load. But got into the menu just fine. When running proton experimental the game would not boot. Got the furthest using 6.21-GE-2 which displayed the introduction video correctly and occasionally get you into the class selection screen before disconnecting.
Only can play the training and practice modes
Can't play multiplayer

No longer able to enter matches.
The game menu starts and you can begin matchmaking. However after finding a match, you'll receive a "Could not connect to server" message before being able to choose a class and you will be kicked back to the main menu with a leaver's penalty. Unsure if this is EasyAntiCheat related.
I can't play online. I get disconnected before the match even begins

15 Dec Patch - Not working
Game will not initiate at all as of this patch. Will attempt after next

Can't play multiplayer, which is the main purpose of this game.
I am not sure if EAC is blocking it, but I cannot connect to multiplayer matches.

EAC no longer works
Random disconnects. Feels like their EAC changed.
Tutorial works great (apart from videos not displaying), but I can never join matches. Fails every time.
Any kind of video/footage doesn't display properly. So the intro screen to the game is a series of "botched video" screens. And the same in the tutorial when it has videos of specific moves you're learning. Doesn't impact actual game play but it detracts from the experience slightly.
It seems like they have enabled EAC support for this game since it shows a EAC loading bar when you start the game. But as above, I can never join matches. And even got a short ban for "leaving" a match early.
"Could not connect to the network"
Videos in game don't load
Tutorial works perfectly, but starting matchmaking and loading to game/choosing class gives "Could not connect to the network" so game is impossible to play
The game worked perfectly until the Dec 15, 2021 patch. Now it won't even launch.
A little laggy and slow when you arrive the main menu, but speeds up when you start to play a round. Totally playable. :)
Video inserts do not work, but it does not affect the game. The game does not start on the modified proton.
Immense lag. Helps to lower resolution scale but not by much and even then not worth playing. Though props to the devs supporting linux anti cheat.

Whilst yeah, the game is fun, eventually needing to restart the game every time you want to fix the performance would become draining.
After the first game, the graphics appear to be lowest quality, alongside a significant drop in performance.
Can play one game fine. Then the performance absolutely plummets.
Crashed twice in 2 hours. Often don't have it open long enough for it to crash, because needs to be restarted to fix the performance problems.
Works fine.

Game can't start
Different versions of Proton give different results, none work.
Using Proton Experimental, 6.3-8 or Proton-6.21-GE-2: When launching the game, after loading Anti Cheat, I get an error message saying "Out of video memory trying to allocate a rendering resource. Make sure your video card has the minimum required memory, try lowering the resolution and/or closing other applications that are running."
Using Proton 5.13.6: The game launches and runs seemingly fine, except that the screen is completely black or some shade of blue or brown. I managed to make my way to the tutorial with no visuals at all, the screen just changed colour occasionally.
Proton 5.0-10: When launching, the game just crashes silently.
Proton 4.11-13: When launching the game, after loading Anti Cheat, I get an error message saying "DX12 is not supported on your system. Try running without the -dx12 or d3d12 command line argument.".
It runs great out of the box. Props for the studio that just enabled Proton support without any discussion <3
Had to run it with Proton 5.13-6, as other user commented. The 6.1 GE version did not start the game for me
No problem, anti cheat seem not impacting (on rookie mod anymay)
Can't see videos