I am trying to make my Power Apps standalone have a responsive design similar to Bootstrap effect. where if we have a form with 3 columns, as follow:-

now if we view this form using Power Apps mobile app or using mobile web, i want to show the fields dynamically in one column as follow:-

so is this possible? I hope so
Here is my current settings for the Power Apps:-
>> The form

>>the display of the app

any advice please? my application will be accessed mainly using 3 devices/screen:-
1) Desktops & Laptops
2) Mobile phones (mobile app + mobile web)
3) pads & tablets
thanks