I play rfactor in steam+linux+proton experimental, all goes fine except force feedback. I tried lot of setups 10% 100% 1000%, positive/ negative, many ways, nothing happened. I read to reset ffb, I did it, nothing The momo racing wheel goes fine in otrhes games,
Linux is outside of the support scope, however on our discord there is a linux channel, where you can chat with other users using linux - maybe they are able to help. https://discord.gg/rfactor2