I limit my exposure to mainstream platforms for the most part, mostly because find it irritating to be spoon fed opinions I don't want to be spoon fed. The algorithms generally hate me during elections because because I'll look at extreme altright commentary as well as extreme woke left commentary.
People aren't supposed to do that.
I pretty much agree with most of what you have shared here. To some degree, I see one shortcoming of Hive as content discovery being a bit challenging. I like your suggestion of selectable tags for your feed (aimed at newbies) and have suggested the implementation of a "tag cloud" from time to time.
I find it helpful to treat my following list a bit like a garden... it does need to be tended regularly, or you end up with a lot of "weeds!"
RE: Hive news feed vs WEB2. Mind control