I switched from Spotify because their personalized mixes and radio stations stopped letting you thumbs down songs. I got sick of hearing the exact same crap on my mixes. And no matter how many times I fucking skipped it, my metal mix would always play Mother by Danzig early in the playlist. No matter what I actually listened to, my “personalized” mixes always had the same crap on it. Thumbs down a song on a mix or radio on YT Music? It goes away forever.
Block those communities or ask the admins of your instance to defederate if there’s not much redeeming content from the offending instance(s).