I just clear the YT sites' cookies, relog in and it disappears. I use AdNauseam and uBlock Origin and still got this.
If they weren't so intrusive with the garbage ads (I hate publicity, over 95% of it is condescending and/or lies), I wouldn't mind seeing an ad in the beggining, or even also an additional in the middle of a long video, but getting two unskippable ads in the beggining and one every 5 mins or less is abusive. So fuck you Google.
Going to install a local instance of Piped or Invidious.
Just found out about FreeTube, works great and has 2 methods to get the video. YouTube is now actively blocking my account. That's how a service is destroyed.