You can also remove yourself from ad topics, and even if you don't want to remove yourself from them it can be interesting to take a look and see what meta has associated you with - https://accountscenter.facebook.com/ads/ad_topics

It won't stop you getting ads, of course, and I have yet to find the holy grail of fictional facebook settings "Never show me reels or suggest groups you think I might be interested in, stick to my actual friends".