Drawful 2

Broken (or no Linux support and proton borked)
2 of 10 achievements (20%)

Headsnatchers

Dead multiplayer Multiplayer
2 of 52 achievements (4%)

Omega Strikers

Broken (or no Linux support and proton borked) Multiplayer
no achievements

Retimed

Dead multiplayer Multiplayer
3 of 71 achievements (5%)

Wallpaper Engine

Broken (or no Linux support and proton borked)
0 of 17 achievements (0%)