IPhone “other” memory

Hey! I completely understand your concerns about the iPhone's other storage.

To make it short, Other storage is just temp files that should clear themselves out when they're un-needed, but just in case, this article from Apple should have what you need.

Clear Other storage from your iPhone or iPad - Apple Support

I've updated to the latest iOS and iPhone is still not clearing the "Other" automatically so the advice from the link supplied doesn't work. The only solution I have found to work is a factory reset but that's unreasonable to have to do regularly.