Storage

Please specify that if your iCloud storage if full or your iPhone storage is full

Please check your iPhone storage as follows

Open Settings > General > About > Available

While you can see more detail about the storage use in

Open Settings > General > iPhone Storage

Or you can check your iCloud Storage

Open Settings > Tap the first icon of your name > iCloud

This will surely open the page you need to know and you can check what ever you need.

Because the iPhone storage is not the same as cloud storage. If you need more space on the phone, you will need to delete or move content.