Safari on iPhone takes up >5 GB
Safari on my iPhone 7Plus with the latest OS 12.3.1 takes up 5.7 GB (I get the size from Settings -> Cellular -> Safari) . I empty the "History and Website data" and Website Data (0 bytes, actually the phone does not store data) with NO effect.
Is there a way to remove whatever it is that is taking up so much space?
iPhone 7 Plus, iOS 12