So, this is what I did before I made the leap, I was due for an upgrade your n carrier.

I went with buying an older iPhone (I believe it was an iPhone 7, with an 84% overall battery health), I tested out everything on it but it's battery health prevented me from using it as a "daily driver", I went to my carrier's store and other stores that had the phone models out that you could play around with, so in the meantime I got another unlocked android that didn't have the navigation buttons (it was, in my eyes, android phone with iPhone 13 layout, everything done physically on screen).

After about 6 months of doing this, I finally took the plunge and upgraded my phone (on black Friday weekend 2022, so I'm relatively new to iPhone) and I can tell you honestly, I love the iPhone, I have the 13, it's battery life is amazing, I can easily get through the day on a charge, I have noticed that the colder weather zaps the battery more quickly but I'm pretty sure that is to be expected, I charged my phone to 100% last and took it off charge at 11:23pm, it is currently at 51% at 5:18pm.

So my suggestion would be try this if you can, if not then I wouldn't jump head first just yet until you are able to do some physical testing