I am not the least bit confused but Of course since you are not providing full and accurate information then I do not know what you are talking about since I can not see you
As I very clearly said in my first post
No you do not need to import - doing so will create duplicates
If you use ICPL then all libraries are kept in sync all the time and you do not do manual imports at all
Very clear and simple - do NOT import manually if you are using iCloud Photo Library
As to the import window while the IOS device is connected I believe there is a box next to it in the Photos source pane with a box to open Photos when this device is connected - uncheck that box and it will stop (I never connect and of my IOS devices to my Mac as I have no need to since everything I need to do is handled by ICPL)
And of course it is trivial to just ignore both boxes and quit Photos without doing anything
and teh import all or import selected boxes have absolutely notining to do with this in any way
do I need to keep the 'import photos' box checked in the Photos app? Most people seem to think it should be kept on.
With poor information from you the best guess I can make is that you are thinking of the advice not to uncheck the "copy imported imported items to the Photos Library" - again as I clearly said
If you are talking about the box to "Copy imported items to the Photos Library" you shoud not uncheck that - that has nothing at all to do with duplicates or importing - it only has to do with where the original photos end up when you import
It also has nothing to do with import all or import selected
So no I am not confused and Yes you are very confused and need to take a class or two on how to use your Mac or you are going to make a giant mess of things (you already have by creating many duplicates unnecessarily - and will continue to make mistakes which are very likely to cause you to lose photos and other thins for yoru computer
LN