What apps don’t work with the Files App that it would make sense for?
Still can't just treat the phone as a drive and put files on there.
(edit: or trivially share a folder on the LAN over wifi, without even needing the USB cable, if you're considering the iOS device a 'real computer')
https://support.apple.com/guide/mac-help/transfer-files-mac-...
The interface exposed is just not mounting a remote file system.
You can do it with a third party app
https://mobiletrans.wondershare.com/iphone-transfer/transfer...