If you use Elementor to design your page with the template set to full width, and after you change the template to the default theme and the content is pushed to the left, it seems this conflicts with the theme you are using. We highly recommend that you report this issue to the support team for this theme so they may further troubleshoot and provide any recommendation (or possible fix) to resolve this issue.

To adjust the margins for mobile version, I suggest you create a version for mobile exclusively to adjust the margins specifically for mobile without affecting the desktop view. However this can also be a conflict with the theme.

For reference:?What do we Support?

Kind Regards,