why is my iPhone storage full if it’s just “other” that is taking up space

The iOS 13.6.1 update addresses some files that take up room that your phone should not need anymore. Try updating your phone to see if maybe some space will clear up!

"iOS 13.6.1

iOS 13.6.1 includes bug fixes for your iPhone.

• Addresses an issue where unneeded system data files might not be automatically deleted when available storage is low
• Fixes a thermal management issue that caused some displays to exhibit a green tint
• Fixes an issue where Exposure Notifications could be disabled for some users

Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222"

In case you do not already have enough room for the update, here are some suggestions on how to resolve that issue!

If you need more space for an update - Apple Support