Sure!
Meta already does that.
I’ve seen a Weyland build that would allow Linux Desktop environments running through an Oculus Rift (was a while ago)
Sure!
Just don’t get things mixed up:
You are not “inventing a new type of computer” here.
You are inventing “a new input method”, which ultimately will be seen by the computer like another type of Keyboard.
And then you’re hooking that “new type of keyboard” to a computer, and plugging a VR headset to it instead of a monitor.
It doesn’t matter how small you make the computer, or that it’s stitched to a suit… it’s still a computer with a “suit for keyboard” and a “VR for monitor”.
This approach allows you to divide it into smaller parts and make use of a lot which already exists out there