Software is eating all cars. It just happens that there weren't many good BEVs 20 years ago, so the touchscreen-takeover looks correlated with EVs.
Old Leaf and Renault Zoe have barely any tech in them (by modern standards). There was a niche Coda EV that was as "dumb" as any car from its era. EVs only need software for battery management.
Conversely, overuse of software, touchscreens and faux buttons made its way to contemporary ICE cars too. The crappy UI that VW has created for ID.3 has been "backported" to their ICE hatchbacks. Every car you buy with a 2024 model-year is going to be an iPad on wheels.