iPhone unlocked with Facebook opened in the safari browser (no meta apps installed, and the only two apps approved to user the microphone in the security settings are Teams and my Banking app for voice security prompt). We were watching Fast and the Furious on the TV in the loungeroom and we were noticing videos pop up on Facebook on the phone for Honda Civics, then Toyota Supras etc. We then started joking talking about KFC and beer as a test, and within 10 minutes we successfully started seeing ads for Beer, KFC. We then tried another when we started talking about Bryan Adams tickets, and sure enough, we got an ad to buy tickets to Bryan Adams. It would take about 10mins from talking about a topic to things about that topic to start appearing in the feed