There are still games you simply can't play on Linux, e.g. Valorant/LoL can't be played on Linux because of Riot Game's kernel-level anti-cheat. And as a highly addicted LoL player it's one of the only two reasons I still have Windows taking up 200GB of my precious hard drive space.

Someone in the Thief community was celebrating the Nightdive remaster announcement because it is apparently getting much harder with each passing year to install and run the Dark Engine games on Windows; meanwhile I've been doing this multiple times a year for about a decade with Lutris.