I reckon that a certain gaming private torrent site has Mac games, but I don't have any invites available for boarding. Otherwise I'd toss ye a life-buoy and reel ya in.

They are indeed out there, matey.

Mac drop (now https://cmacked.com) and Mac bed (https://www.macbed.com) have pirated apps which includes games but it's pretty limited as I think these are only apps from the Mac app store

I'm not a Mac user, but it seems to me that Torrrminator has a lot of GoG games.

MacBB (https://macbb.org) and MacSerialJunkie (https://www.macserialjunkie.com) are the easiest way to get access to Mac games. It's free to register into these forums. They upload ddl links, so the speeds won't be nearly as good as private trackers (notable ones being iAnon), but they do have all the recently released titles like RE Village and No Man's Sky, and old Intel games too, which runs pretty well via rosetta (if you have an M series machine).

It's a numbers game. Less Macs exist to begin with and many fewer that are used for gaming.

I used to laugh that Apple would brag that there was so much less malware made for Macs like it was something they had done and not just that the user base was too small a target for bad actors to care about. Nowadays that's changed since Macs are seen as luxury items, more money to be had made it worth the effort.