I know I don't pay as much attention to 3DS, but I'm currently going through and trying to finish out the Switch UI port. 3DS now supports zip import and export and will get the same Google Drive support Switch is getting. I already have Drive working on both, but 3DS has a minor issue not present on Switch. I'm hoping to get them both updated by late December or early January. It's been asked of me a bajillion times since I wrote this and I know it took close to 5 years, but it's happening.