Okay, so I tried to install ProtonDB but I ran into problems on the website. Firefox said "Secure Connection Failed". I was going to go on their Discord and tell them, but their Discord Server link is also dead. So I'm kind of stuck here. I really hate switching back and forth from Windows to Linux, especially now that Windows throttles almost every game meanwhile Linux is like "I'm good". I just want to play GTA V without lag.
Edit: I am a raft floating in the river of shame. So Proton works, I just ran into one tiny little problem. I got GTA free from Epic Games. And the Epic Games launcher doesn't work with Wine. Shocking I know. So all of this was sort of for nothing. On the bright side, I can play COD and Watch Dogs on Linux now.