Hello, @Lucas,
Unfortunately, this is not possible, you can only set the conditions for the multiple templates for different pages, not for different devices, and the gallery style you will choose to show on the desktop it will show the same style on mobile as well. This is how it works.
Please post your request here – https://www.8theme.com/taskboard/ , so our dev team read it. If it takes votes from other customers, our dev team will add it in one of the next updates.
Regards 8Themes Team.