Hello,
I saw the screenshot you attached. It is the default behaviour of the product page for the mobile view that no label tooltip is displayed.
Unfortunately, There is no option in theme settings to show tooltip of color swatches on the product on mobile view.
It requires customizations and this is beyond our limitations and support policy.
You cannot disable swatches for mobile users because without using any variation the customer will not be able to buy any variable product.
Best Regards.