For example, if you’re watching a video on YouTube and an auto-playing add starts playing music, the YouTube video will be paused.

NO NO NO NO NO.. This is going to be bad.. What is going to happen is this will become the DEFAULT. And then eventually remove the ability to NOT have this feature.. Don’t say it wont, it ALWAYS happens.. Because they don’t like having “options” it makes it more streamline if everyone has the same settings... Even…