I wouldn’t say I really care if the “community” is big or small (it’s also a bit unclear what you mean exactly)… but I care when Linux (and in general, open source alternatives) are treated as if they weren’t real options when it comes to hardware support, compatibility with services I might want to use, etc. I don’t think you can have proper “progress” with those things without having Linux be a recognized mainstream system. Like, my bank is not gonna make a Linux app for a non-Android phone if non-Android Linux phones are not mainstream, for example.