It's ad blocking and entire operating systems, or computers configured in any way they don't like.
If this goes through, they can force you to install any plugins they wish, or disable any plugins they wish. Or make sure you don't run Linux and only Windows or Mac. They can force you to have your camera on. They can do anything since they make the rules.
No innovation will take place. Competing browsers or software will not be allowed or manipulated into marketed as "unsafe".
This is a takeover of the open web stack as we know it.
I registered and I felt the same as you. Not worth my time.