I've tried it.
Please keep to the parameters of the scenario, i.e. DR of EVF == DR of sensor.
They don't. That's the whole point.
The EVFs are showing what is in essence the out-of-camera JPEG, with about 1 stop clipped from each end. And as we all know, the out-of-camera JPEG contains several stops less DR than is available in the raw data.
Interesting. So the camera is essentially generating 60 or more JPEG images per second, plus adding overlay data to it. Amazing.
It's a low-res version (1024x768 is considered a very high res EVF).