Storage

Hi Janez,

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.

Update your device

An issue in iOS or iPadOS 13 might prevent the system from freeing up storage for you. To fix this issue, update your iPhone or iPad to iOS or iPadOS 13.6.1 or later.

If you don’t have enough available storage to update wirelessly, update your device to iOS or iPadOS 14.1 or later using a computer.

you can't fully remove it

but you can read

How to find and remove 'Other' files from iPhone and iPad | iMore

Clear Other storage on your iPhone or iPad - Apple Support

and more

iphone remove other storage - Google