You could always make things easy for yourself and buy a drug dealers phone. It’s got a great game called snake on it and you won’t have any of the issues you’ve mentioned.
No! I prefer to do nothing. If the iHaveToPhone goes nuts again l will probably give up with it, but otherwise I'll leave it be with the eSIM of my, main number and I will take a Samsung with the physical SIM of my other number in if I go somewhere that doesn't involve carrying luggage. For instance, if I end up flying anywhere, then I will just take the iphone If I just drive, then I'll take both phones. For stuff like going to the theatre or cinema, where I need a phone to show a ticket, then the Samsung will work best.. I keep tickets on my Google drive with which, Android works best I think call divert is just a code you dial on the phone. I'll need to familirise myself with that divert code and how to stop diverting, for when I leave the iphone at home.