Steam wont launch any proton games from other drives

[Naman]

Hi there, welcome to the community. See this post, and check if it works for you.

Steam games wont start if i have them on another drive

If you have mounted with the windows_names option (which is sensible if you share the disk with Windows) then filenames can't contain a colon (:). Keep in mind this will cause other issues with existing prefixes:

Also, see if other similar topics looks like your issue (use forum search option.)