I found a way to download non-Linux games using the native Steam client. (w/o Wine) : r/linux_gaming

Unable to launch Proton Steam games - Solus Forum

How to add & play non-Steam games on Steam (on Linux with Proton

Uplay is not installed : r/linux_gaming

3 Ways to install Steam on Linux Mint or LMDE - Linux Shout

Proton-5.11-GE-1-MF released : r/linux_gaming

How to Play Windows-only Games on Linux with Steam Proton

How to add & play non-Steam games on Steam (on Linux with Proton

Steam Community :: Guide :: How to run Windows version of Steam

Steam for Linux now has more titles than all of Steam did when Big

Blank loading screen for steam? : r/wine_gaming

Gaming on LINUX: A beginner's guide

A Gnu Way to Play: How to Get PC Games Running on Linux

Lutris not showing the games already installed in Steam - Gaming