Not quite following what you are asking for so excuse me for that but...
I have 2 lines on my 11 Pro Max (same when I had my XR and my XS). My personal number has always been on eSim and my work number is on physical sim. Both numbers are from Verizon.
When I first swapped from my physical sim to eSim on my personal number, it gave a little fit to the system (this was on a fully paid off XR from T-Mobile at the time in which the number I was porting over was on eSim with T-Mobile). I kept telling the CSR to use the digital IMEI not the physical. Low and behold when he finally listened and entered in the digital IMEI it worked right away. I then purchased a XS fully paid for and when to swap over my eSim to the new phone. I had to remove the eSim from my XR and then it went right into the Verizon system, sent a new QR code, and I was back up and running.
I preordered my 11 Pro (5.8") on preorder day direct from Apple. While going through the process, it kept trying to use my business number for the upgrade since in Apple land the physical sim is ALWAYS the main number. Once I was able to direct the Apple order system to my eSim number, it got all the info and order was placed. When I received my new 11 Pro, I had first removed the sim that Apple had sent, turned the phone on, but it had to have that specific sim in for activation. Of course it worked immediately but I still wasn't getting cell service. I removed the Apple supplied sim, used the QR code from my previous XS eSim, and BAM. Back up and in business (caught my by surprise cause I was under the impression the QR code would only work 1 time and for that specific device?).
Fast forward to last Monday, I decided to exchange my 11 Pro for the 11 Pro Max at my local Apple store. This time my old QR did not work and I had to call Verizon, pithing 5 minutes I was back up and running with new QR code that was sent.
I did have some trouble come last Thursday though. When I originally purchased my 11 Pro, I did the trade in with my XS and had already sent it back. When I exchanged my 11 Pro, Apple sent me back my XS, so last Thursday I took my XS directly into my local Apple store, where we did an exchange with trade in (kept same phone). Both of my sims were active and in my 11 Pro Max at the time Apple went to activate the sale, but Verizon's system kept getting an error. She thought she was going to have to call Apple to get them to do something on there end, but while standing there, I grabbed her sim removal tool, removed my business sim, she tried again and went right through (that's when I schooled her and several other Apple employees including the manager in if this ever happened again, the way Apple treats the sims (eSim is always secondary to physical no matter how its set up in the settings).
Know this is long, but Verizon, at least on the personal side, is pretty good with there eSim program (don't get me started on the business side with eSim, its like talking to the red headed step child).
Good luck, keep pounding them. They will get it figured out,