If the majority of companies that rely on Linux use it as a server for some kind of service(s), desktop environments or even graphics are not a priority. That'

If the majority of companies that rely on Linux use it as a server for some kind of service(s), desktop environments or even graphics are not a priority. That's not to say that such use-cases don't exist. But the focus is, generally, not on outshining another OS or platform through the user interface or graphics.