Microsoft Surface Pro 9 hands-on: Can Intel and ARM models live in harmony?

On the one hand, the Surface Pro 9 is pretty much what we expected: a jump up to Intel's 12th-gen CPUs. But Microsoft surprised us with a huge shakeup for its tablet PCs. There's also a Surface Pro 9 running a custom SQ3 ARM chip, which also includes built-in 5G. Can an x86 Intel processor and a mobile ARM chip really sit side by side? We got a chance to compare the two new machines at Microsoft's hands-on event, and to be honest, we just have more questions.