Trying to figure things out and I noticed something strange about this icloud/Mac stuff.
Under icloud drive/Documents, I have two things. One is that desktop folder. But there is also another file I converted from Word yesterday to Pages.
So I did a search in Finder for that file and it showed up twice: Once, of course, in icloud drive/Documents, but the other was in an external drive backup which is supposed to update each night to be an exact copy of my internal drive! Specifically, inside my User name folder/Documents. But there is no corresponding "Documents" folder on my internal drive!
I figure that maybe, in my internal drive, the Documents folder got hidden (I was pretty sure I had my system set up to show it, but maybe not or maybe it got changed), but for whatever reason it isn't hidden in the backup copy. Found instructions to hit command/shift/period to some hidden folders and, yep, it shows up - grayed out so I'm not sure if that may cause any issues.
Got to go out for awhile, but when I get back, I'll experiment by moving some folders in iCloud inside it's documents folder that presently are outside of it and then compare things again.
Assuming that works, I will still have to figure out how to arrange some things. For one thing, when I turned on this option to sync, it looks like all those original default folders (like one folder for Pages docs, another for Numbers, etc), are outside the documents folder and thus not synced to my Mac, though I'm not sure - could be something hidden there too.
I'm also not sure how I want to arrange thing regardless of that. Prior to the cloud, I organized things by subject. So all my school related stuff would be in one folder (and sub-folders) irregardless of the program that created the documents. But Apple's cloud was automatically putting all Pages docs together, etc. I'm just not sure what the best way would be. I'm inclined to go back to my old system, though I guess it will make a hassle any time I create a new file and have make it save where I want rather than what Apple wants. If I do it Apple's way, I'd still need subfolders for different subjects. This would end up giving me a subfolder within Pages for school stuff and another subfolder within Numbers for school stuff, etc. I may be looking at it wrong, but it doesn't seem to be the most logical approach.