Regarding #2 Be effective:
I have always felt like what these services would do is to push towards things like matrix/signal etc. and matrix is decentralized as an example so they can't really do chat control there but my idea of chat control was always similar to UK in the sense that they are gonna scare a lot of people to host services like this which bypass intentionally or unintentionally this because if they bypass it, they would have to pay some hefty fees and that possibility itself scares people similar to what is happening in the UK itself.
VPN's are a good model maybe except that once they get on the chopping block, they might break the internet even further similar to chinese censorship really. Maybe even fragmenting the internet but it would definitely both scare and scar the internet for sure.