This was never an issue for me. I almost exclusively use the “home” (I guess that’s “recommend”) part of the youtube app and very rarely get AI videos in any form (voice, images etc.). The few times it’s happened I do I just tap the three buttons and select “don’t recommend channel”. About 80% of videos shown are from channels I watch regularly and the rest are a random mix of interest relevant things with a few completely random ones here and there. Not once has it been any AI heavy anything.