Do you think watching The Social Dilemma with family or friends could help spark a conversation about how they are being manipulated by "Big Tech"? I plan on doing this with someone who has been greatly affected by the algorithms, and although I do not expect an immediate change, I do expect it to spark some new thoughts and questions.
Another comment here mentioned this site as a good starting point for taking tangible action against being influenced by algorithms: https://www.humanetech.com/take-control