If you want a non-terminal os based on linux you just have to make something like android or chromeos or steamdeckos.
Those are and pretty popular, so I don't know who can claim linux is "terminal obsessed" it's just a kernel and there is a wide diversity of os based on it.
Debian , fedora , suse etc might all be "obsessed" with the terminal.
For me that's just the obvious economical way to offer features. decent GUI costs a lot more to develop and document - so you have to have less features for a given amount of dev time. Or you have google /valve/microsoft type amounts of resources to spend.
I always thought this "year of linux" thing was a meme to make fun of canonical or idiotic tech journalists .
Is anyone realitsitcally interested in volunteering their time to win over legions of Microsoft fanboys. Fuck me sounds like hell.
And frankly the use of terminal is going to be far from the first blocker to linux adoption for those who don't even know they're using windows or mac.
Can You Use Linux Without the Terminal? (How to Geek article) (www.howtogeek.com)