Mobile settings view

Hello
I would like to get some help with Elementor. I am building my website and I have a few issues I am not able to solve by myself.
1. In mobile view,
https://rotemshaul.com/collections/fall-winter-2021-collection/
I would like to set full width for the video (without white space on side of the page), something like this ( attached screenshot)
2. In the same page mobile version, I added a WordPress Gallery. I would like to set bigger spaces between the photos (attached screenshot )
3. Again on the mobile, When I am playing the video on the main page (rotemshaul.com) and I swipe my screen to wide view, it shows me the tablet version/view, meaning the mobile video is still running and I got the same page in Tablet version.
I guess it depends on the resolution breakpoint.
How can I change it in order to prevent both displays together (mobile and tablet)?
is there any condition I can turn on?

The page I need help with: [log in to see the link]