This is a basic guide on how to run YimMenu under Proton for people who play Grand Theft Auto V on Linux and do not feel like dual booting to "have some fun." There are probably more optimal ways of accomplishing this; however, these methods works, and do not appear to introduce any stability problems.
Note
I am in no way involved with the development of YimMenu, or any other open source projects mentioned in this guide. I simply figured this may be useful information for other users I've seen inquiring about this topic.
Important
Before you begin, ensure you have Grand Theft Auto V installed, as well as the protontricks package via your system's package manager.