Well, it's actually underrated. The reason that it doesn't have so many GUI apps, just like windows does, is because it has fewer users, so companies don't bother to support Linux. And don't forget about how hard Microsoft has tried to win the desktop battle, by paying/convincing software/hardware companies for exclusive windows support.
Taking into account how spread it is on IT/servers, yes, it is definitely underrated. My comment was more directed at a personal computer level.
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