The U.K. Parliament has passed the Online Safety Bill (OSB), which says it will make the U.K. “the safest place” in the world to be online. In reality, the OSB will lead to a much more censored, locked-down internet for British users. The bill could empower the government to undermine not just the privacy and security of U.K. residents, but internet users worldwide.
Easiest way is prevent download of the app from the App Store based on your region especially on iOS that is hard to get around.
worst case scenario (android): https://signal.org/android/apk/
They could go further and ban servers, you will need VPN to use it. They will ban VPN, you will use another. And so on… And on…
that is why we need to keep #i2p healthy