Can a product section show fewer products on mobile than on desktop?

Yes. The product count and the number per row can be different on each device.

1. Open the product section (for example Four Column Product Box or Premium Product Slider) in the builder.
2. On the Desktop tab, set Number of products and Items per Row (sliders call it Items per View).
3. Click the Mobile tab and enter smaller numbers, such as 4 products and 2 per row.
4. Click Save.

Mobile keeps its own numbers and desktop keeps yours. Number of products can be from 1 to 50. If you leave it empty, 12 products show. Click ↺ beside a field on the Mobile tab to go back to the desktop value.