J12t, Opaque algorithms are a funny thing.
Over on #Threads, my "Following" feed does consistently have more things in it that are interesting to me than my "For you" feed.
I've been observing this for a few weeks now, and it's consistent.
Seem the cost function might be optimizing for something other than what I like? Or is the signal not good enough because I don't "like" or such enough?