I don’t use ad blockers, just normal YouTube. One thing I noticed about a month ago is that when I’m watching some silly video a 55 second ad will come on with about three minutes left to view on the video. It’s at that point I usually just back out and look for other videos to watch. My grandson told me it seems odd because YouTube monetization requires the whole video to be viewed before they’ll pay. Does this make sense? I don’t know much about “monetization” I just watch silly videos.