Ironically, Windows has the largest FOSS catalog of any OS, apart from soft proprietary of course. Also, many official and professional business apps are only available for Windows. Gaming can also be a reason to use Windows, although this is slowly changing.
What specifically do you still need Windows for? It’s possible that you can get it all running under Proton.
Ironically, Windows has the largest FOSS catalog of any OS, apart from soft proprietary of course. Also, many official and professional business apps are only available for Windows. Gaming can also be a reason to use Windows, although this is slowly changing.