Is it possible to fix horrifically generic youtube recommendations?

For some time on my desktop youtube main page and my recommended videos are filled with the most generic normie content imaginable - mainly videos aimed at teens popular <at my location> or 'best of youtube' with views in the billions. Almost nothing that I'm interested in. What's quite terrifying there appears to be thin layer of 'recommending' going on because a couple of videos from exactly the same creator or about strictly the same subject that I've watched recently are sprinkled here and there.

On the other hand on my TV (even though I'm not logged in there) yt recommendations function as previously.

I remember the change of desktop recommendations happened almost overnight.

Maybe I did switch on or off some obscure privacy setting or blocked some data collection? How can I get usual recommendations back?