Most but not all, every one I’ve personally been in has had a high floor as the majority of manufacturers seem to be favouring a so-called skateboard style base for pure EV’s.
If you look more at the type of car which is also available in ICE format you’ll find less of an issue. The lexis 300e springs to mind as one example, but I know there are several other converted cars out there, but I don’t know of any cars built from the ground up to be electric with batteries in places other than under the floor.
"Man is born in freedom, but he soon becomes a slave, in cages of convention, from the cradle, to the grave."