They put the exact same faux buttons in their ICE cars.
This is not an EV thing. It's a contemporary trend, and it just happens that most newly designed cars are EVs now.
The rise of touchscreen technology was just coincidental with the rise of EVs. The first Tesla Roadster, Nissan Leaf, and Renault Zoe had crappy little screens, and real buttons for everything, like most cars of their era.
OTOH today EV-hating Toyota keeps making screens bigger. The latest Lamborghini has multiple touchscreens too.
This change would have happened even if EVs didn't exist. iPad is more to blame for that trend than an electric drivetrain.