Can RP6 play these PC games?

Looking for people who actually tried to run these games and can tell me if they can be reasonably played on RP6. Thank you everyone!

1. Oblivion GOTY (2006) + can i mod it?

2. Diablo 2 Resurrected

3. Dark messiah of might and magic

Bonus question: Can i use installer files (like backed up GOG installation files) to install games, or do they need to be installed through a launcher?