Can those users buy a new battery that’s a higher capacity?

No, the new batteries don't fit. Those specific people knew what they opted in for though. Everyone who didn't received the final version.

So there are people out there with a phone with a 1-2 hour battery life? Ouch.

2 hours of active use, or about 10 hours in suspend.

Not sure what's so "ouch" about it. People also bought devkits which didn't come with any battery at all. Only some people were presented with the opportunity to receive a phone from the earliest revisions and only some of those people chose to - presumably those who cared more about getting a platform to hack on as early as possible than things like battery life.

It’s an unacceptable amount of time for a phone. Devkit is one thing, but if you’re buying a phone you should expect more than few hours of usage.

You're completely out of touch. If you're explicitly choosing to receive an early pre-mass production batch with unfinished battery, you already know what you expect.

Have any non-early phones shipped yet? Where are the all-day battery versions of these phones?

It sounds like they’re still not ready.

They've been shipping for two years now.

And yet people in this thread are talking about garbage battery life, phones not showing up, etc?

So maybe read what they're writing more carefully, you've already got all the answers here.

The mass produced phones that started shipping mid-2021 have 4500mAh battery and, with current software, reach about 20h in suspend with modem on and connected. Due to component shortages and other delays it's still shipping through backorders, although the queue is near its end right now.

Not everyone is saying that though. People are saying the battery life is atrocious and this phone is now $1300?