Nothing changed? A12X came with IOS 12 and iPadOS (13) was definitely not nothing. External storage support. desktop browser (with download manager) and mouse support were a big deal...The problem is look at the A12X. It was grossly overpowered for iPadOS and yet, nothing changed. Everyone assumes because the Mac got essentially an iPad Pro chip (not the other way around) that Apple has big plans to take advantage of it, but the iPad Pro hasn’t lacked for power in years. It’s always been hamstrung by first iOS then iPadOS. I am hoping for big changes but understand the hesitation for many of us to believe Apple is somehow going to open the iPad Pro up. I am very happy to be proven wrong. The only thing that gives me a sliver of hope for iPadOS 15 is the fact that the iPad Pros have desktop level RAM to finally go along with their desktop level CPU/GPU performance.
I expect some other big deal for iPadOS 15, like full monitor support and all the multitasking that this would allow.
But for people wanting MacOS on iPad there is no iPadOS improvement that will be enough and they are bound to be disappointed....
But after this don't expect anything for 2 years... iPadOS 16 will be just like IOS 10, 12 and 14... And it's this slow pace that highly annoys iPad enthusiasts....