Why would you want a phone with less ram, a screen with less resolution and less refresh rate, no s-pen, worse charging speed, and on top of that a worse and less optimized operative system??? If that’s what you want then buy some Xiaomi mid tier smartphone.

You know the only reason for the iPhone to exist is iOS and the Apple ecosystem, right?

Turn off pro res, use the least proprietary technologies to make the videos universally playable, save the videos on at least two external SSDs, to be sure the archives are safe and don’t get corrupted, and everything doesn’t get lost if one of the drives gets stolen or broken, preferably SSDs with USB-C connectors cuz it’s the future.

Save them in folders separated by age, and on each folder put the videos you record plus some photos of you and her, text files with tips or anything you want to add that you think will be important in that moment of her life, without passwords or encryption just in case.

Good luck and enjoy your time to the maximum, wish you a lot of happy moments bro.

The best iPhone would be an S23 ultra with iOS, or at least with FlymeOS form Meizu.

It’s very common if you’re in Silent Hill

The camera isn’t damaged, something just moved inside the camera module due to the fall. Take it to a trusted technician or an Apple store for a revision, maybe it’s just disassembling and assembling the camera again.

I do that kind of things by myself, but I suggest you to not try it unless you know what you’re doing

Or change the camera if you want to take no risks, your phone your choice

That’s the price you pay when you choose to go caseless, you get used to it