EVs have really high-end battery management systems and cooling, which will have a huge impact on battery life.
Heck even my phone is lasting better these days with just better software battery management in Android. My current oneplus 9 is going on three and a half years old and hasn't notably degraded in battery life. Whereas I'm pretty sure I remember all my previous phones having noticeable battery degradation after a year or so.
While true, the analogy is bad. The phones (and to some extent laptops) are notorious of the overcharge. The Li-Ion (cobalt) normally should be charged to 4.22V or so. Tool batteries usually do not go over 4.18V. Yet, the phones are happily pushing 4.35V - which provides longer life per charge initially, plus a proper planned obsolescence later.
EV do proper battery management AND cooling.
My main horror with EVs, particularly Teslas is putting everything on a tablet display in the middle.
Its like it was designed by some kid who's never driven a car.
Its a safety issue, frankly. IMHO.
I'm on the sideline waiting for the battery tech to improve a bit more before buying my next (electric) car.
As an aside, I'm horrified by what new privacy invasive "features" these cars will include in all electric cars.