I went on facebook as an experiment for a couple of weeks, try it out again, even take part.
Algorithm quickly caught on that I liked some interests - transit, trains, Taylor Swift, and EVs.
It was fine for a while, made a few comments, engaged with a few people, both who agreed and not.
All of a sudden over the last week I'm seeing just pure propaganda - BS "headlines" like "50% of Americans regret buying their EV". Absolutely unproven horseshit, but there it is.
Facebook is absolutely culpable in this mess. They straight up promote it, and for me I was pro all of that stuff, it switched on me.