For adults who have started using smartphones after having experienced a computer, “file” is a natural concept. Documents created by applications such as images, word processors, spreadsheets, etc. become files and are recognized as being independent of the application, and are exchanged while caring whether they can be attached to emails, written to disk, and read by other parties (can be opened with the application) It is what I did.
On the other hand, “files” are unfamiliar to generations who have started using smartphones without PC experience. In particular, the iPhone has adopted a design that does not make the user aware of the existence of files, considering the ease of use. Documents / data are managed inside the app and are not handled as files except when taken outside.
The same is true for Safari, which is the Internet window for iPhone. Different specifications have been adopted for PC browsers, such as being able to download files but not select the storage location. However, whether or not there are many requests to process files like a personal computer, Safari now allows you to both download and upload files.
In addition, Safari on iOS 13 lets you choose where to download files. In Safari so far, iCloud Drive was automatically specified, but if you open the screen in the order of "Settings" → "Safari" → "Download", you can change the storage location of the downloaded file.
If you change the storage location to iPhone internal storage, it will be easier to download even when the remaining capacity of iCloud Drive is tight. The downloaded file can be freely transferred / copied using the app “File” that comes with iOS 13, so you can download it whenever you come up with it.