Transfer photos between iPhone camera rolls
I got a new iPhone and I went through the setup process using the iCloud backup of my old iPhone. But I screwed up and I didn't realize that on the old phone the backup was set to not include the photo library. I also don't use iCloud Photos. So as a result none of the photos from the old phone were transferred to the new phone. And I didn't realize this until I'd already taken a bunch of photos on the new iPhone.
My goal is to get all the photos old and new into the camera roll on the new phone. My initial thought was that I could do a new backup of the old phone that includes the photo library and then set up the new phone again from backup. But this would actually lose the photos that have been taken on the new phone.
My only other idea is to turn on iCloud Photos on the old phone, wait for it to upload everything, and then turn it on on the new phone. But I'm not experienced with iCloud Photos and I'm nervous that this won't be the same as if I'd included them in the backup in the first place.
How can I solve this?
iPhone 14