> You need a consent popup to embed YouTube or Twitter
Not really, since embedding YouTube and Twitter should work even if the consent for tracking is refused (under GDPR consent inherently is opt-in, not opt-out; and consent is valid only if it is freely given, i.e. if you don't refuse service to those who refuse consent), and for that you don't necessarily need a popup, because you're free to assume that noone opts in to anything where a choice is provided - if you just treat everyone as if they clicked 'I refuse any optional consent', you don't need to ask that question.