I took this with the Mini 3. Yes I edit in the 35 DNG before I stitch it, making it 420 MP.
Yes, a cheap Mini 3 is fine, no need for the Mavic.
FB link
Here is the same photo, but in higher resolution on Google map : Google map link
I wonder if the Pro 2 controller can be used on this drone. No word yet if it is Occusycn4+.
I read you can get DJI Refresh, but you have to ship it back to HK.
I have the Mini 3 too. I love this drone. It has the same sensor size as the Mini 3 Pro, Mini 4 Pro and Air 3.
I recommend not doing 48MP as it intro lots of noise and artifacts. I shoot a little underexposed, in DNG always, remove the CA/PF...