Just happened to me too, was using ublock origin and privacy badger on Firefox for Windows 10. I tried following the advice on the ublock subreddit so here's hoping that does something (less relevant for those who don't even have an adblocker but maybe it'll help others idk).

Very cool that Youtube is presumably using a ton of resources to ensure people have to watch mind numbing adverts for shitty products they'll never buy instead of preventing 10 year olds getting an endless pipeline of Andrew Tate videos and shit.