Well I guess my unofficial YouTube chat bot won't work anymore. The YouTube API is awful compared to the Twitch one for bot creation so it is easier to get the functionality you want using Selenium.
Why not? This restriction was added on Android years ago and it basically means that you retrieve the OAuth2 token with a normal browser and then send it to your automaton script/app.
It blocks auth to prevent phishing, not actual access.
It blocks auth to prevent phishing, not actual access.