Dunno, have you made it/them not track your or something? What sites are you talking about, X, insta, etc or just X?
I almost immediately notice when it determined that I am interested in a topic because all of a sudden I get almost overwhelmed with content to do with that. Youtube I've found takes it to the absolute extreme - search for something once and it thinks that's your whole life haha
The entirety of Reddit is astroturfed lol. Has been for years.