I hear you. I played Fallout 3/New Vegas on Xbox and had to leave all that stuff when I moved to a new house in another province a month ago. As soon as I picked up Macs I went to go see what stuff was available on Steam/GOG. I picked up some Windows exclusive games and some that were Mac specific.the advantage of being a mac user is we have missed every good game for the past 10 years. now we can pick them up for pennies and they are all new to us.
When I first bought Fallout New Vegas in Xbox format it was $89 Can on launch day with no DLC's. Just buying it online it was under $10 Can with all DLC's. What isn't for the Mac I try with Crossover and if that fails I run it under Windows 10 arm64. Some stuff hasn't run under Crossover, although I never adjusted settings just went to using Parallels/W10 arm64. Nothing hasn't worked under that usage scenario.
The most demanding game I have is Steel Division 2 and that works fine under Parallels/Windows.
But I was able to buy a Mac version of Civilization VI, so that alone makes me happy.
Tom