YouTube keeps recommending videos I've already watched -- a LOT
I don't know what's going on but for the past 3-ish months my YouTube homepage has been 20-30% videos I have no interest in and 50% videos I've already watched. Did the algorithm break? Has anyone else experienced this? I have to actively dig for content I actually want to watch and I'm afraid to downvote the videos I've already watched because I did enjoy them and don't want to confuse the algorithm further. But, for example, I watched a couple music videos (like literally 2) a few months ago and now 25% of my homepage recommendations are music videos?!
What is going on with YouTube?