Steam has been so easy since proton, i honestly never learned to use lutris. I think i played with it once and gave up, but this was 6 years ago at this point. Maybe its easier to use now
Tried to use lutris a few years back and got spooked. I tried lutris again this year and the process seems to be more streamlined. I just tried installing an ancient game from an ISO and lutris asked me "are you trying to install game A? Then we will apply the patches for game A". It was all automatic.
I've had fewer problems with GoG + Lutris in Linux than I've had with Steam in Linux, to the point that I had to pirate one of my Steam games in order to be able to run it in Linux (the pirate version runs just fine).
Mind you, I get the impression that older AAA games are the most problematic ones, thought that's maybe because I don't run anything with Kernel Anti-Cheat and nowadays don't really do online gaming (in fact all my games in Lutris are run inside a firejail sandbox with network access disabled).