I get why a few years ago there was a push for this, but in this era, why? There are so many music / news / talk streaming options that traditional radio might as well be dead. You turn on the sports radio shows and they are deliberately advertising and directing you to their podcast over their radio show.

iPhones are Dual SIM. You can use a physical SIM + and eSIM. I have used my iPhone with two different plans/phone numbers for a while.