Downloading memory maker photos

I have nearly 600 photos from our memory maker from our trip last week. I am now ready to download them to keep and sort through and print some of them. Are you only allowed to download them once and to one device? I’m debating if I should download to PC or to my phone. However, I used my PC to add borders and “stickers” to some of them (after making a copy of the original), and I can only view the edited photos on my PC even though they aren’t downloaded yet. The edited versions do not appear under photos in the Disney app on my phone like all the originals do. Any help/suggestions greatly appreciated!

I always download them to our PC, then back them up. From there I can export them to wherever else I need to use them.

I download to both my phone and PC, and my wife downloads our photos to her phone as well.