I went to the Apple store a week ago with this problem. They cleared Other storage and did a restore. I have updated to iOS 13.7 and Other storage is back up to 9 GB of my 32 GB iPad. What now?
iPad, iPadOS 13
Check this link...
You will need to delete photos, messages, apps to free up space. Be sure to save important photos and data to your computer or an external drive. Here is another linc which may help you to manage storage...
How to check the storage on your iPhone, iPad, and iPod touch - Apple Support
Yes I did what the article says and the problem was solved temporarily, but less than a week later it is back.
Other storage taking up too much space on gen 6 iPad
