Most servers are not able to access the Google API.
Invidious report of the same(ish) problem: https://github.com/iv-org/invidious/issues/4045#issuecomment-1674373088
3 points
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It’s important to know know that by this google still can’t run their own fingerprinting scripts or fingerprinting stylesheets, nor set cookies, so while not ideal, it’s not that bad.
I would suggest that (except when you watch something more private) until this gets somewhat more sorted, turning off video proxying is probably not a huge tradeoff. Also don’t forget that FreeTube and NewPipe don’t do proxying (FT can be set to do that, though)
