No stats, just what I see and consider logically. If you have a .NET (web) app, it makes sense to run it (for free) under Linux (directly or using docker/kubernetes/etc.) instead of paying Windows server license. Sadly I don’t see download counter for dotnet linux images but they would be some sort of an indicator. I can believe Desktop apps are not many, though, for historical reasons mostly. But now one can create a standalone nice looking app as well, perhaps they will be more frequent in future, who knows.