Without account I see the same channels from TV stations now. While virility isn't a good metric for quality, the current one is a complete joke. YouTube didn't seem to be ready for YouTube and instead degraded back to TV.
How YT abuses creators and viewers, it would be better for all to go to a non-profit, sustainable platform that has clear, straightforward processes and doesn't ban people without a reason by algorithms.
Corporate platforms will always devolve into Kafkaesque hells because their motives are aligned with rent-seeking extraction, not promoting the arts or creativity/monetizing fairly.
As far as content goes, I use it logged in, and I have plenty of good content, but of course the default for a logged-out user is going to be generic, trending videos. Youtube like any other social media platform expect you to have an account and curate that account.
Maybe you deleted your cookies or switched IPs recently?
You should try it sometime just to see how bad it actually is.