UnknownUnknown
thcrap_proton -- %command%
Game just straight up work with no Tinkering at all; just launch and play
For English Patch, however, you do need to download tactikauan "thcrap-steam-proton-wrapper" via Github, which requires you to go through Desktop mode.
Here is the link and how to do it: https://github.com/tactikauan/thcrap-steam-proton-wrapper
Custom wrapper script
In order to play the game with thcrap, while keeping Steam integration, use this wrapper: https://github.com/tactikauan/thcrap-steam-proton-wrapper
All official Touhou games seem to require using
PROTON_USE_WINED3D=1 %command%
Missing this line may cause the game to not boot up. Game works perfectly after using this line!
Game works perfectly out-of-the-box, you just need to make sure about the window resolution you are using.
My video card is a bit old and does not support Vulkan.
Game crashes if you try to launch the game in a resolution bigger than your monitor and in full screen. Both the conditions need to be met, so launching in windowed mode or with a resolution smaller than your monitor in full screen is fine.
All details about the setup I did are available at https://gist.github.com/kazuyanakamura/85c85bc62ac5a10646c24b6b7cf7c134
