You can find a procedure using Lutris here
Worked great for me on a fitgirl repack.
Never really had a problem with either FitGirl or DODI repacks in Lutris
This may not be the right place for a superficial rant, but: I never figured Lutris out. Installed it a couple of times in the past years and rage-deleted it after a week of fiddeling because NOTHING WORKED. Not GZDoom, no emulator, no windows game let alone the RDR2 repack. I don’t think I’m that dumb, but seriously, I need help. I love the idea of a gaming platform on Linux, but the time I already sank into this piece of software without accomplishing anything is depressing!
Not sure if this C is about the same thing, but there it is. Linux crack.
I personally use bottles via flatpak and flatseal to make the games not connect to the internet when it’s not needed just in case.
If you want native linux games, there are sites for that.
Ehm… which sites?
There’s torrminator for once, it has a section for linux cracks specifically. There’s also a large collection on the internet archive of native linux games that you’d have to find for yourself (to keep in line with the rules), but it shouldn’t be too difficult.