to anyone that at 07-12-2023 YT again shows that you are using an adblock heres a tip:
Install /update uBlockOrigin

go to about:addons

click the 3 dots for uBlock > mange

click the settings cog at top right > Check for Updates

uBlockOrigin in address/tool bar -> Settings > filter lists

Purge all caches

Update now

Go to one of the youtube tabs (ideally no other youtube tabs open, but I'm a tab hoarder so.)

I also have firefox containers and the temp containers extension + audio autoplay is disabled. Which may be helping.

click padlock in addressbar > clear data

reload the page and login again (if you have temp containers, you have to disable it during login due to cross-site redirects.)