Why do I have 19 gb of other storage
Why do I have 19 gbs of other storage and how do I remove it
iPhone 7, iOS 13
Clear Other storage on your iPhone or iPad
If you have iOS or iPadOS 13, your iPhone or iPad storage is full, and the storage is mostly taken up by "Other" storage, update your device to iOS or iPadOS 13.6.1 or later.
https://support.apple.com/en-us/HT211686