Perfectly done <3

A little phrase used by presumably either bots or children that are smattered all over a YouTube short or tik tok.
It means that the thing being viewed was done with great skill

“Dude, carter, I’ve been seeing this perfectly done <3 stuff in comment sections, and I think it’s from bots.”
“No, Harold, it seems these Tiktokers are brainwashing kids or something, man.”