Thank you for your answer. I figured out a way :)

I have another question:
I would like to remove/disable the sidebar, only on the shop overview page. I still want the sidebar visible when entering the category pages as it does correctly now.
But if you see on my webpage, the three category entries won’t center align under the slider images because it looks like the sidebar placeholder is preventing the entries to align properly.

The page is here:
https://www.mevnorge.no/mev-shop

Hope to hear from you soon.