Some people refuse to accept this is real, but when you’re around the same people everyday, those people’s search history can affect what you see online.
There are a ton of other recent articles that go into more detail, the one I posted is from 2017, but still holds up. Basically when you’re connected to the same wifi or Bluetooth as other people, your info gets shared.
I’m not saying this is for sure the reason why you’re seeing so much adult content, but it’s possible a roommate or coworker is effecting your recommendations and ads.
There are some conspiracy’s the deeper you look into this, but cross device tracking is a real thing and 100% affects what you see online.
Now the fact so much adult content is allowed on a social media platform where kids are watching is a whole other problem…