Dunno. Unless they just output feeds in chronological order and maybe add some filter which I have explicitly defined myself, I’m not trusting any algorithms.

Lemmy is an echo chamber you make yourself tho. There are no algorithms that push certain content to you. Obviously, if you only lurk on shit like hexbear, my condolences, but I don’t feel like Lemmy is an echo chamber, at least much less than reddit was.