I have a ~3year old fb account because I have to use messenger. I don’t use FB almost at all (I even sparingly accept friend requests) and have turned off ~anything that provides targeted content (I live in EU).
Since about last year (or possibly even before), my feed is about 35% Ikaria ads (a Greek island, I’m from Greece), 10% porn, 10% sexist-misogynistic stuff, 15% sexist-misogynistic porn, 15% christian stuff and the rest random stuff.
At least this might confirm that turning off targeted content works…🤷