I've used XNView on PC for over 10 years. I'm new to using it on MAC. I have folders stored on my iCloud drive that have photos in them that I want to manage and edit. HOW do I find the iCloud folders and the photos in them?
XnView MP is available for Mac, and you can view and edit photos stored in iCloud folders with it. To do this, open XnView MP and go to File > Open > iCloud Drive. Then, navigate to the folder containing the photos you want to manage and edit.