Well, at 13 years old, Carlsen (#700) was already giving Kasparov (#1) a run for his money while looking kind of bored and casually checking out the other matches around them [0] so I'm fairly sure a GM rank on a website isn't really something he worries about that much now that he's spent 120 months as world's #1 and holds the record for highest rated player in chess history.

Kasparov still holds the title for most time spent at #1 at some impressive 255 months though. [1]

[0] https://youtu.be/WjEmquJhSas

[1] https://en.wikipedia.org/wiki/List_of_FIDE_chess_world_numbe...

He was also drinking a lot in this stream. He would routinely break out "The Transvestite Opening"* for fun. And still mauled gms.

* https://www.chess.com/forum/view/chess-openings/the-transves...