George Earl
Interesting. Those problems sound different from what I’m experiencing. I think you should be able to be signed into your Apple account on more than one device. I’m honestly not sure why the Internet connection isn’t working for those apps you mentioned. I’ve had slow connections, but at least I do have connection. I wish I could be more help. 
Precious
Ah sorry. A 16e. Some apps work. Some do not. I’m thinking it’s because I have yet to sign out of this phone which is an SE3. I could be wrong completely. It’s annoying me though because, hello, you have to have WiFi on to set it up in the first place. Setup worked great. Now I’m not entirely sure what is happening. Facebook says “you are currently offline.” And most apps, I signed in with Apple, say nothing after I used Face ID. ChatGPT said “cannot connect to Apple servers.” I’m getting emails on my old phone but not texts, which I’m ok with.
Precious
Sorry for the late comment. I’ve got an 15
George Earl