Add 2 different class/ID in sections.
Now with media query css ( If you are not aware about media query do search in google )
For more check here
I had the same issue as you with Turbo, but i switched to Plak theme, all the sections on my theme editor have the option to show/hide them on different devices.
With this i made a desktop version almost completely different from mobile
If you would to keep your current theme, you need to hire a developer