That being said all the cars I looked at when I bought my car had a spare tire as an option (by default you wouldn't get one)
So it'll impact e.g. the fuel consumption you can advertise.
My later cars both had no spares neither an emergency solution like the previous one had. I used a foam tire sealer once, worked wonders on a small puncture.
Couple weeks ago I managed to completely fuck up a tire on my volvo with no spare. Had to call assistance number, they sent a tow truck.. Spent half a day sorting it out.
Chevy also put my battery in the trunk for weight distribution reasons, which makes the available space there even less. Maybe they felt they could do that because there was no spare.
I love my Camaro but it is definitely a "pay to play" vehicle.
Oftentimes, spare wheels are very tiny compared to the wheel they're replacing and just made to get you to the tire place.
The challenge with a donut on my car is trying to fit over/around the brake calipers associated hardware.
I've been lucky so far: in the 13 years I've own the car, I've had only one slow leak due to a nail. I haven't needed a spare yet.
there is a trend to put instead of spare inflation kit + sealant. costs savings and such
Edit: none of these were hybrids or EVs, so it's not just batteries.