Cats getting totally excited to see their owner, because they dearly missed them. Cats filmed in night cam dropping weird animals from the forest on sleeping boss. Olympic athletes, gorgeous, but not real. Countless disasters where people die, generated. Youtube shorts is a pile of steaming garbage. As long as it sells, your brain may rot.
Worst are imho on the regular long vids side, the geopolitical advisor deep fakes, giving background to the news. Some with well over a million followers. Many of those have the same "we are a fan of the real person" disclaimer, many have no disclaimer.
And no one in the comments, of which many look fake too, notices it is AI. That is the most scary part.