As I got older, my interests in games decreased. That and also because I am too dumb to make wine work with games nowadays; it was easier in the 32bit era. :\
But the real problem is lack of time. There are so many things to do and so little time. Today's games are also not as interesting IMO. Most of them are just "who has the better 3D engine".
Weird to say you don't game these days but also make blanket statements about games these days :p
Hearing the theme still gets me emotional and very sentimental.
And you choose then to NOT give those games you love more exposure and share them with the rest of the world?!
I'll start: windows version of Uplink game works great in proton, and if you install uplinkos mod on it, it's a super fun Hollywood-style hacking game: https://www.moddb.com/mods/uplink-os
In no particular order and in no way an exhaustive list:
Lies of P.
Baba Is You.
Ender Lilies/Magnolia.
Rain World.
Pillars of Eternity 1/2.
Return of the Obra Dinn.
What Remains of Edith Finch.
the "We Were Here" series.
1000xResist (played this one just a month ago, what a game).
Katana Zero.
Bloodstained: Ritual of the Night.
Sayonara Wild hearts.
Fell Seal: Arbiter's Mark.
AER Memories of Old.
In no particular order and in no way an exhaustive list:
Lies of P.
Baba Is You.
Ender Lilies/Magnolia.
Rain World.
Pillars of Eternity 1/2.
Return of the Obra Dinn.
What Remains of Edith Finch.
the "We Were Here" series.
1000xResist (played this one just a month ago, what a game).
Katana Zero.
Bloodstained: Ritual of the Night.
Sayonara Wild hearts.
Fell Seal: Arbiter's Mark.
AER Memories of Old.
1. Hit the download button in Steam
2. Wait for it to download
3. Hit the play button
Granted, my taste in games doesn't include things like generic AAA first person military shooters, which are the ones which tend to be the most difficult to get to work due to stuff like anti cheat. But it sounds like your taste doesn't include those either,