It would be nice if Warframe would detect whether it's running under wine/proton! Then it could show a little tux instead of a windows icon.
For WINE: use ntdll.wine_get_version() https://source.winehq.org/WineAPI/ntdll.html https://stackoverflow.com/questions/7372388/determine-whether-a-program-is-running-under-wine-at-runtime
For Proton: I don't know, the same method as for WINE?