I think the problem for me is that ad free isn't ad free with YouTube. It seems half the videos I come across are littered with sponsored segments. Often multiple in the same video.
Worse, there's whole cadres of reviewers, mainly in tech, who have created a weird feedback loop causing their entire videos to be subtle ads. Reviewer gets popular, reviewer quits job to youtube full time, reviewer needs to get early access to make reviews, reviewer is told what they can and can't say by mfg. Mess up or give negative review, they'll never get another early access from said company. So their entire job has become to basically advertise.
There's a few channels I'll watch that I trust, like Project Farm, VCG, a couple carpentry ones I don't remember the name of. The thing in common is they mostly seem to be older guys and/or people just making videos for fun.