An older thread asking about this just floated back up in the forums recently. I'd replied in that thread you could move an old SIM card to a newer phone and it ought to work. (That customer was a flip phone user, so maybe it's OK with flip phones, which don't have the sophistication smartphones do.) However, another customer posted in a different thread that when they tried moving their SIM card to a newer generation of same-branded smartphone, it completely broke things where the new smartphone failed to work. Verizon agents then mentioned that moving your SIM card to a new device is no longer supported and it was only when the other person got a new SIM card did things work.
So...just as a public service announcement...if you're getting a new phone, get a new SIM or eSIM on it instead of moving an old SIM card from an old phone. SIM cards are free at corporate Verizon stores. I have not (yet) used a phone which is eSIM only, so can't speak for whether transferring an old eSIM to a new smartphone would also break things.
