It must be hard to compete.  GT pays royalty/licensing fees whereas it's my perception that the bulk, if not all, YouTube lesson channels do not.

Here is interesting info about the Floyd's licensing, of course it probably relates to David Gilmour, too:   https://www.digitalmusicnews.com/2022/11/15/pink-floyd-catalog-deal-delay-analysis/ 

Competing with the big boys and having to work around major artists selling their entire catalogs to major publishers while other major artists are buying back their own music would be cause to be very tight lipped about how a business like GT goes about its business.