So I have been struggling with this one for some time. I discussed it with Tom some time ago and he mentioned that a fix would be coming with the last update. The responsive design has improved, but I still have some issues.
Hey GP team,
The issue is with the Woocommerce product archive pages.
Desktop view is fine, but iPhone and iPad are not ideal.
iPhone (6/7/8 and X) in portrait is good at 1 column, but should change to 2 columns in landscape (iPhone X should be 3 columns in landscape).
iPad in portrait should be 3 columns without sidebar and should convert to 3 columns with sidebar in landscape (iPad Pro can display the sidebar in both orientations).
My current live site is on Divi (unfortunately) and I have been working to migrate the site over to Generate Press. One thing that Divi has covered well is the responsive design. If you have a play round with the page linked below you will see exactly what I would like to achieve on Generate Press.