You're still missing a lot here, point one is that a sealed battery is diminishing returns, less charge held with time. Swappable means 100% charge, but also 100% new battery health with aging cells. Second, your overlooking the point about wired or wireless banks needing babysitting - talked about wireless alignment issues, but you're also putting a lot of stress on your usb-c port, a common failure point, by shoving those wires in pocket while trying to charge on the go. Last, the price of the proprietary batteries was negligible, and they were the size of like two to three credit cards stacked. If you are holding on to external power banks that long as well (which you likely aren't) your risk of those things bulging/exploding in yet another sealed case increases. When you hold the batteries themselves, you have full transparency and can act ahead of issues with bulging.

So, no, I respectfully do not agree with your premise - They aren't equal, swapple batteries were objectively better in multiple ways.

P.s. what are even doing on a smartphone that you can't be bothered to power down for the literal 15 seconds it takes to cycle modern devices to then resume with all apps still in background process and auto saving content?