The drone doesn't support faster microSD cards because it's limited by the hardware in the drone, there are several faster types of micro SD cards but the Mavic 4 doesn't have the hardware to use them. The older UHS-II spec offers faster speed...
Closing the loop here - I opted to purchase a refurbished RM500 Smart Controller via the "DJI Store" seller on eBay. $375, shipped to the US, took about two weeks to arrive.
Setup was easy, it recognized my M2ED with no issues, updated...
It wouldn't surprise me that the Mavic 4 Pro has better jpegs than the Sony since it's not unusual for more enthusiast level cameras to have weaker jpegs I assume with the expectation users will be mostly using raw files. I was happy with...
I feel like I'm missing something here but the DNG image even with default processing looks to have quite a bit more dynamic range, you can clearly see each of the clouds with some detail but in the jpeg the clouds are almost completely blown...