Well nearly 18 months later, and now owning 4 drones, I ordered an iPad Pro 12.9" with M2 chip and 256GB for photo/video editing. It arrived this afternoon and I have began setting it up, I also bought the Apple Pencil, a carry case/sleeve, and an MFI* 2TB attachable drive.
For editing I have downloaded Light Room and am currently downloading Davinci Resolve for iPad which is taking over 3 hours on my wifi. I have been using Photomatix Pro on my laptops for over 10 years but don’t think that is available for iPad?
I will probably have more questions about using the programes for editing when I get a chance to go fly again, I haven’t yet flown my new Mini 4 Pro I bought for Christmas.
*MFI = Made for iOS