Just because a carrier says they support eSIM doesn't mean they support it on all phones that support eSIM. At least that's how the American carriers seem to operate. That resulted in me screwing up the service on BOTH my phones yesterday when they bricked my physical SIM cards.
On the plus side, AT&T had an amazing deal on an iPhone 14 Plus ($5/mo after bill credits for three years). With the iPhone 14 Pro I ordered a few weeks ago still coming…I guess I'll have two new iPhones.