The Hummer EV has e4WD rather than eAWD. e4WD does have some "Mode" you can set depending on terrain. etc.it's not a mystery on how it works... look at the motor design and how the 4wd system works on the Hummer.
I found this about the Equinox ICE AWD:
https://www.graffokemos.com/is-chevy-equinox-awd-what-that-really-702330/So, is Chevy Equinox AWD?
In keeping with its across-the-board versatility as a CUV, the Equinox features switchable all-wheel drive. That means you can switch to front-wheel drive and take advantage of the car’s fuel-efficiency. Or switch to all-wheel drive when conditions are challenging.
The system can even auto-detect conditions like slippery roads and prompt you to switch on AWD through the Driver Information Center. This helps cement the Equinox as a CUV that’s just as comfortable as a slick city car as a scrappy off-roader.
Of course eAWD may be different. But I also found this:
Here's Why the 2024 Chevy Blazer EV Comes in FWD, RWD, or AWDThe 2024 Chevy Blazer EV has a headline model in the high-powered SS edition. But the RS offers something no other car has: you can have it in front-wheel drive, rear-wheel drive, or all-wheel drive. ...it looks like GM and Chevrolet have been the first manufacturers to take advantage of what EV architecture lets you do with configuration. According to Shad Balch, spokesperson for Chevy, the reason why the new Blazer offers different drivetrain options is simple: Because they can.
"It's a simple answer—the Ultium platform makes it easy to configure more options for customers depending on their needs," he said.
Chevrolet hasn't released details of how the powertrain works but it did note that rear-wheel drive and all-wheel drive configurations are dependent on the size of the battery pack selected.