but have no idea how I should go about playing games on Linux

What distro?

Do you know what graphics card you’re using?

Honestly, the only reason I have Netflix in the first place is because it came bundled with my ISP. Can’t cancel it without phoning them up and I’m much too lazy to do so.

People whose first love was Lara Croft on the PSX?

I’d recommend either Tidal or Qobuz. If you end up buying albums instead I would also recommend Roon (not a streaming service).