So, this is helpful. But what I would really like with an iPad M4 and a 15 ProMax is the simple ability to connect the 2 devices via a Thunderbolt/USB-C cable and have them be able to access the file systems on either devices - for BIG transfers - like 2GB movie raw files and stuff like that - rather than (a) tying to AirDrop them, (b) putting them through iCloud or © copying them to an external SSD on the phone and reading them back from the SSD on the iPad.