Frocing e-sim was a giant pita ... could not activate e-sim bugs, hours on the phone with vzw support, then no matter what you did it said it needed to switch lines, unable to fix it, they insisted I had to go to the Apple store ( takes half a day, none nearby ), went to a physical VZ store, more of the same crap - you did not buy it from this store, where did you get this phone, so you have to go to Apple - this is an Apple issue. Got VZ to remove the phone and add it back to my account, with single e-sim as line 1. Suddenly everything worked, except a whole bunch of contacts and other stuff still says it needs another line ...
Frommmy observation, the e-sim was added twice, with the same assigned number, second was activate, but not usable ... type of thing.
Wasted more than a full day on that nonsense ... because, you know, Apple just did not want us to have sim cards any more.