Force download all files from iCloud to iPhone

I'm fed up of being away from home, looking for a file in iCloud on my phone only to find that it hasn't synched and there's no mobile connection to download it. Is there a way to make iCloud download all my files without having to remember to manually synch everything every time I upload or change a file in iCloud? The only way I have found to be certain that files are downloaded from iCloud to Mac is to go through every directory and file on the iPhone, long press and download. I can't find any way to do this at the top level.

This is not about photos - this is about other files.

iPhone 13 mini 16.6

MBP14 13.5

If you're going to post sending me to Apple help about how to use iCloud then please don't. I've spent ages searching them and they don't help.

Thanks in advance.