This exactly. I find it perplexing that social media companies get to make decisions about what people see but then also get to pretend that they are just a neutral communication medium. They're clearly not.
HN also decides what you see. Yes, it's (mostly) based on other users' upvotes, but on TikTok et al. its the same just with a different metric (watchtime, interaction, retention and probabily more). Where do you draw the line? Or do you have a different proposal how these generated feeds should work? I don't think just showing content by users you follow is going to cut it, because ideally the purpose is to show new and interesting stuff nobody in your circle was aware of.