Seems like a legitimate question. There are gamers here after all.
When I switched to Linux in 2020 I feared I had to abandon a large part of my game library (Getting rid of Windows was my sole reason for switching to Linux, so dual booting wasn't a permanent option). But in fact I am amazed at the amount of Windows games that do work on Linux, both old and new. Not in small part thanks to Valve. Thanks Valve!
After playing Serious Sam 4 (meh) and Serious Sam Siberian Mayhem (yes!) I'm now (re)playing Serious Sam 2. I just couldn't play a "serious" game after Serious Sam.