when people say "Elon's ownership doesn't affect me, I just use the chronological feed" they elide the other side of this which is that which of your posts the site shows are chosen by the nazis now.
I don't think it's a coincidence that a bunch of the left wing people I know who still seem to be happy with posting on Twitter are posters who spend most of their day posting anti-Biden-from-the-left stuff that the site's owner would like to promote as well.
Having some of your posts do well and other posts get buried creates feedback loops in human minds (especially the sort of mind a lot of addicted posters have) which reinforces belief in whatever it is the algorithm chooses to promote.