I saw this app featured on a YouTube channel and thought it was pretty interesting, especially for GNOME users. However there is a rather weird thing about it: it claims to be using Piped for YouTube but it doesn't get the "Sign in to confirm that you're not a bot" error. I guess it uses a different API when Piped gives an error.
Are you sure that it is indeed using piped or proxy instead of googlevideo.com?
The Gitlab page says it is using Piped and there are mentions of it in the app itself.
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