If the car literally stalls that is one thing - do your dash lights come on? (The ones that would come on if you just turned your key a couple of clicks without cranking it over).
But if its just jolts or something that can be a whole different thing. So you’ll need to clarify.
How long have you had this car? If you’ve had it a while, has it always done this? Or is it a new thing? I doubt its “normal.”