Photos/videos inaccessible
Basically what it says on the tin: my photos/videos are seemingly completely inaccessible. When I try to open the Photos app, the most it does is show the animation of the app opening but it never actually does, it simply crashes immediately or after a few seconds without ever actually showing my camera roll or any of my albums. All other apps (social media/photo editors/etc) where I'd usually be able to pull up my photos display nothing. I know it's not an iCloud issue (my camera roll is saved locally) and it's not an issue with app permissions either.
On my macbook, the Photos app says it's preparing to import for a moment before asking me to unlock my phone (which it is, with everything else on the device popping up fine), and Image Capture displays "Please wait. Photos in the camera roll of (my phone name) are being prepared" no matter how long I leave it up for. Phone settings says I have 0 photo/videos, but the storage space that my camera roll typically takes up hasn't been freed up (though where it normally took some time to calculate/display how much storage Photos was taking up, it now no longer actually displays that, and doesn't seem to be able to finish calculating category sizes either).
Only indication that there's actually anything there is that longpressing the Photos app icon will give the options that does display a thumbnail for the "Most Recent" image (which I know isn't the most recent image I'd saved). The photo preview in the bottom corner when you open the camera also still previews my camera roll (but shows a different pic than above), and while for a while it seemed to be displaying what actually was the most recent image, now it remains static no matter how many screenshots/pics I've taken to see if it will change. Did a phone backup and a quick clickthrough of those files too, and did see a few pictures I had, so there's still something in there somewhere.
I'm running 14.0.1 right now, so I can run an update to see if it fixes the issue, but the last time I tried an update while my phone was acting up, it froze up completely and had to be factory reset, so I'd like to see if there's any way to try and get to my camera roll first before doing that. I'm not sure if this last backup I ran actually grabbed everything, and in the grand scheme of things it's probably not a big deal since I'd last backed up my photos a few months before this, but if there's potentially a way forward without losing my most recent stuff I'd like to try that out before resetting anything.
iPhone SE