Funnily enough, one of my most played games on Linux is Age of Empires 2: Definitive Edition, a Microsoft game. No rendering/frame issues and got the multiplayer working (manual steps needed [0]). Less and less reasons to boot on Windows!
Everything works without any fuss if you use Glorious Eggroll fork of Proton. I've played 100s of hours of AOE2 DE this year on Linux. Before it took manual steps, but I recently switched to a new distro, used GE, and needed nothing more: https://github.com/GloriousEggroll/proton-ge-custom
I've been playing Halo Master Chief Collection on Debian in Steam. It is amazing that gaming on Linux has come this far. RDR2 and Skyrim run better, faster, and at higher graphics quality and framerates than on Windows 10.
Shiiiit. I would to do 3840 x 2160, after getting used to that with HD edition.
So I finally got the NVidia Intel switchover thing working, but it didn't help at all. I have a GTX 950M which is quite a bit worse/older if https://gpu.userbenchmark.com/Compare/Nvidia-GTX-950M-vs-Nvi... is to be trusted. Maybe GPU matters more than I thought, and mine is just too old and crummy? But I thought I read it was still software rendered.
[0] https://github.com/ValveSoftware/Proton/issues/3189#issuecom...