I've had an ID4 Pro S for 10 months. Last month (while an original defect (front passenger lumbar massage) was finally being fixed) the loaner car was an EV6.
Things I liked about the EV6 that were different:
Heads up display, shows important info well, without having to look down to a screen.
The nanny-minder doesn't require returning hand to the steering wheel as often.
Vented seats: cool nicely on a hot day.
Birds eye view of car: shows surrounding objects when maneuvering in close quarters.
Charging: a voice announces that you are "charging", after you plug in.
I wish the ID4 had those perks; but relative price and availability led me to the VW stable instead last year.
I didn't drive it long enough to get fully acclimated to the controls; as with the ID4 it takes some time to learn the car's quirks. But like the ID4 I wish it were more similar to the cars of yore: more physical controls, on the dash, labeled, obvious to a driver and passenger; and fewer tucked away in on-screen menus.
Just for context: I'm generally pleased with the ID4, though I feel strongly that VW misleads buyers about range and charging issues and winter battery limitations. In the cold part of a northern state, with long distances to drive, an owner soon learns there are hard limits to battery/range function and charging/planning ease of use. It's not yet a practical solution for ordinary consumers in these situations. (I'm an EV believer and willing to pay the early adopter prices; my spouse still refuses to even try driving it.) I didn't use the EV6 enough to compare it on those points.