https://github.com/ytdl-org/youtube-dl/issues/23860
The developers are not responding to the issue, and from what I understand it is borderline impossible to fix, because there is an entire security team behind the Google login protection. The only workaround is to login with a browser and copy the cookies from it to youtube-dl.
That's really easy to do with postman.
Looking quickly online, maybe you're meaning this one?
It just works. Every time. It’s gotta be one of the most unappreciated tools out there right now.
youtube-dl could then call that command to obtain the cookie.
Maybe there's Red-only content that isn't advertised/recommended to non-subscribers?