My go to favourite band is AFI, and they have a great back catalogue to dig into as they've been going since the 90s but have changed their style with the times (although always sort of emo/punk adjacent). I flip flop on my favourite album from them, currently I'd say it's Sing The Sorrow but sometimes it's Decemberunderground.
My taste changes frequently though, so for something with a completely different style, I find myself constantly returning to Personal Protocol by 8485, a wonderful hyperpop EP with Drum & Bass influences.
I hope you get something out of any of this, and would love to hear what you think!
I'm pretty fresh to Linux myself, but as far as I know it's exclusive to steam. You can launch non-steam stuff through it by adding the .exe to the Steam client, I played Fallout 1 this way