So fine, you didn't know this trick. No shame there. But you're willing to click around trying to discover the feature in your GUI (and expect the desktop to hold your hand trying to do it!) yet won't take 30 seconds to google for "install linux fonts". (I just did, by the way: the first two links tell you exactly what I just did).
So sure, the Linux desktop isn't for you. You want more polish and attention than it's willing to provide. Just don't pretend that your inability to learn a few facts about the implementation of your desktop and/or develop an intuition about how things might be done represents "hassle" that takes time away from your important work. Those skills are good to have, and those of us who have them are, quite frankly, better at our jobs than those who don't.