This is a nice, specific detail. Most of these comments are very vague.
> There is a driver for an older version of the wheel that kind of works
Do you mean an out of tree driver?
Would you test this and post back? The 6.3 kernel they mentioned 3 months ago is very old and likely a forked kernel.
https://www.reddit.com/r/linux_gaming/comments/vb0b37/g29g92...
I am new to steering wheels-not sure if this is the exact version because they mention xbox)? Try a distro with a very recent kernel (6.11; like Nobara for a gaming focused distro).
> I also noticed that games from Steam end up taking up substantially more disk space to the point where I can have only a few games installed on Linux.
Shouldn't be substantially more disk space. Would you provide stats?
Proton makes a Windows environment for each game as it installs those 3rd party libraries in the environment and that is used for disk calculations, while on Windows those libraries may be installed directly to the OS. Each 3rd party library and the shader cache is stored separately. This is my guess-I do not work on Proton.
> And even the games without any special hardware dongles don't work so well as you imply.
Anticheat and a few obscure Windows libraries are an issue. River City Girls needs some media foundation library or it does not show cutscenes. Valve is working on them.