storage on iphone

That looks like storage corruption. Before doing anything back up to iCloud, your computer or both—>How to back up your iPhone, iPad, and iPod touch - Apple Support

First thing to try is to update iOS—>Update your iPhone, iPad, or iPod touch - Apple Support and check storage again. If it looks the same restore the backup you just made—>Restore your iPhone, iPad, or iPod touch from a backup - Apple Support

if you go to Settings > General > iPhone Storage > Photos does it have any suggestions that might help?

ie, does it show the Recently Deleted Album with a lot of storage used?

is there a section that shows personal videos taking up a large amount of space?

or if you go into the Photos app Albums and go down to Media Types, how many videos do you have? Videos can take up a lot more space than pictures.. Also screenshot size can vary, often times larger than a photo.

What do you call a short video? I just did some poking around in my photos.. I'd consider a short video maybe 15-20 seconds? A video of this length for me is ~30MB. So 300 such videos could easily take up 9 or more of those 32 GB.

I agree that 32 GB sounds a little high for what you're telling us, but it's impossible to evaluate without knowing exactly what all you have for media types.

Have you recently deleted a bunch of photos/videos? If you go to the Photos app, select Albums at the bottom.. and then scroll all the way down to the bottom you should have a selection called Recently Deleted. How many items are in that? This album will hang onto your deleted items for 30 days.

If there is a bunch of stuff here you can empty this album to try and save some space by tapping Select in the upper right and then in the lower left tap Delete All.

If you go to Settings/General/iPhone storage (NOT Settings/Storage) it will list everything that uses storage on your phone. If you don’t see Photos tap Show All.

If you wait a few minutes, does anything else appear? What does the graph look like? Can you post a screen shot?