Came upon this looking for the same solution. Hope everyone at least votes that idea up, I am tired of the constant covers as well and would like my recomended music to actually be things I may not have heard from the original artists, not constant covers that I am not interested in.
In the past 3 weeks something happened to my discover weekly & release radar as well. I haven't liked that many cover songs, but I'm now getting at least 3-4 cover songs each week. They all suck. There must be some part of how the recommendation algorithm/models work that give bias to cover songs. I guess it could happen easily; they are musically very similar to tracks I've liked in the past. The problem is that noone likes a cover when the original is so much better! And I don't like to "discover" covers.
I don't know what message disliking the song will send to the recommendation algorithm. Will it be able to infer it's because of the cover status, or will it negatively impact my profile?