Storage when running a software update

I have used 63GB out of my iPhone’s 64GB storage. There is not enough memory free to be able to run an update. However, I could delete a few apps and then run the update through iTunes. Once I have ran the update will I still have the same amount of space available or will the update use up the remaining available space?

I would try to just create more space if I could but I’ve deleted all the apps I don’t use and I’ve noticed that when I delete photos the storage for photos goes down but the ‘Other’ storage goes up. So no matter how many photos I delete I’m still left with 63GB of storage used. Other storage is over 14GB now. There is likely a problem somewhere but I’d like to rectify it without having to resort to resetting the phone and deleting all my stuff. I’m hoping that if I can get it down a little bit by deleting some more apps I could run a software update and that may correct the issue.

Any advice or help would be appreciated. Thank you.