While not a "PC", I have games in my Steam library and from GoG that I can't play on a modern mac anymore because they removed 32-bit support post Mojave, so I

While not a "PC", I have games in my Steam library and from GoG that I can't play on a modern mac anymore because they removed 32-bit support post Mojave, so I keep an increasingly-difficult-to-use MacBook Pro on Mojava. So, Steam didn't save me :(