The type of buttons but also the inconsistent behavior. Buttons with an indicator light for on / off state for instance (vs an actual physical toggle or switch)

The type of buttons but also the inconsistent behavior. Buttons with an indicator light for on / off state for instance (vs an actual physical toggle or switch), some times stay on when you start the car again, others reset to default. I get there are some regulatory requirements around this too, but still annoying.