They're just entertainment. Like throwing on a movie or tv show.

I found value in a handful of Primeagen's videos (he inspired me to relearn C programming in a roundabout way) but the vast majority are fluff and I skip them based on the title or within the first 5 minutes.

A couple exceptions are Low Level Learning and Tsoding, who both generally stay technical, and any guest appearance by Casey Muratori will be worthwhile.

But even those, you're better off with a book or your own project to work on.