Well I found the 11 Pro Max 256MB that I bought in the first month after launch about the limit for what I would pay for a phone. I have been very happy with it, but the battery life has degraded significantly. Other than that I can't fault the phone. Unfortunately Apple has subsequently raised the prices even further.So much #1. Add in what apps are in use (looking at some of the known hogs like Facebook, WhatsApp) and wifi vs cellular usage, the "I don't use the phone that much" is probably a bit of fib.
When I retired my 2020 SE, it was at 88%, 992 cycles, after three years. Replacement 13 Mini is still at 100% after five months and about 110 cycles. Even with "small" batteries, have had good life. 5W charging primarily and using them as iPods that can make phone calls and a few other things occasionally during the week. And averaging only about 1.4GB/mo of cellular.
Started to feel that way with the X. Felt I "overpaid" for the Mini but had no options for small, basic, and FaceID enabled phone.
Edit: spelling.