no, they don't allow it, they maybe begrudgingly tolerate it. They have a history of false-copyright striking youtube videos, and they've recently started using AI (Tracer AI) to DMCA-spray claims, some of which are obviously nonsensical.

Of course, they are fine with you making youtube videos about their game (itdraws people in) but try making a video about a bit darker topics related to the game and you can quickly find your video striked.

I even found an instance of a project like this one (a unfinished open-source MC clone which is vaguely similar but original assets and code and everything) receiving an LLM-written copyright claim based on "it looks similar and that's protected by our IP"