I have a strange issue with the product category grid placed on the main page. In some windows, resolution grids change the column numbers. Please take a look at the screens below. I have disabled all plugins and other customization etc.. but the problem still exists.
the problem occurs in the wp-bakery widget, not in the shop category loop. You have the same widget used in the demo main site -> https://demo.xtemos.com/basel/. Below screen with my settings.