I lost you. algorithmic “feed” is created by Threads for Threads users. As long as you personally do not subscribe to Threads “communitues” (or whatever it will be) you do not see there. Without Threads you can find an unpleasant context in Lemmy as well, if you search for it just or browse “all”. If you want instance admin decide for your what you allowed to see and protect you from everything what they thing is not nice - there are few.