How to Display Something on Mobile and Hide it on Desktops?
To display or hide elements or rows on specific devices, you need use the “Visibility for Devices” option in the WPBakery settings inside the row or an element.
Open Row settings and scroll down to “Visibility for Devices” option. Click on it and select “Visible on Netbooks“.
This setting means that when the browser width is smaller than 1024px, the row will be visible. On desktops where the browser width is lager than 1024px, the row will be hidden.
This option is also described in the article Configuring the Visibility for Devices.