There's still a separate brake pedal.

Okay, so it's a misnomer

For me, the majority of one pedal driving is exactly this. No brake pedal needed. Requires looking and thinking ahead when driving. Obviously if something unexpected happens, the brake pedal it is.

This is how I already drive my gas powered vehicle so I don't really get the difference

But then again, I'm always shocked when I've driven in the USA, Americans ride the brake pedal it's crazy

I'm talking no brake pedal is needed even for stopping at roundabouts, intersections, etc. The regen braking will take you to a complete stop. Much less brake force than the conventional brake so it's crucial to have enough space in front of you.

I guess it's a different way of controlling the vehicle but I don't think I would enjoy or feel comfortable in a car that starts decelerating the moment the accelerator is released

I mean coasting is one thing and of course you will lose speed doing that, but this sounds more aggressive than just naturally losing speed from coasting

Tangent, but why do you call it an emergency brake? I've always known it called a park brake: the thing you engage when you park your car.

Make a foot shape with your hand and tap on the touchscreen. Only takes few days to get used to.