I think this is a new feature as it used to store your account tokens as plaintext, no encryption. So it might be something new.

you can install updated filters for it, though. Just check out fangfrisch.

Roaming in 5G is definitely a step up from 4G. I don’t know the exact tech behind it, but the home region profile is replicated while roaming, meaning you get lower latency and faster speeds. In 4G and prior, the user device had to call back home, which would send back the data, and if you’re in another continent it means 200ms+.