My telco requires that I receive an SMS on my eSIM to move it to new phone so... yeah.
It's amazing if the phone for whatever reason doesn't work and that then requires a long customer support call that might not work. The direct phone-to-phone transfter the devices offer is also blocked on the carrier.
Another issue I had was (travel) eSIMs failing to provision because the carrier didn't whitelist my phone brand/model. The QR code was spent, my money gone and customer support nowhere to be found.
I've never had such issues with pSIMs in decade before. It's ridiculous.