Gog has support problems on some windows games too. Also they mark games run via dosbox as windows, which is annoying when you specifically want to find an older windows game that also had a dos release. Even with those issues, gog is still my goto because at least my games won’t be full of denuvo securom etc. and nobody else seems to remotely care about the really old harder to find games. I’d be scouring ebay fo old discs if not for gog.