In 2023, I had 97% Linux with the only Windows games being Skyrim and Fallout 4 because of modding.
Now that I got modding to work on Linux I resolved to have 100% playtime on Linux for 2024. But Steam Replay says nothing because its still only one device :(.
Gaben, throw us a bone here pls.
Technically you could mod these games on Linux but it was a bit wonky. So I preferred to play these on Windows with MO2.
Then I started using Steam Tinker Launch to setup and run MO2 on Linux and thus stopped using Windows.
However STL does not seem to be getting updates these days so I now use this for modding Skyrim, Fallout, etc: https://github.com/rockerbacon/modorganizer2-linux-installer
Edit: Nexus mods are also working on a cross-platform app for modding, though its still in alpha. Currently only a few games are supported with support for more coming soon.