Where are Woocommerce pages?

I am fairly new to WP so apologies if this is a daft question.

I am putting together a site using WP and Woocommerce. It all looks as it should, but I am trying to add a a modal popup on particular pages.

But the Woocommerce pages such as this one:

https://www.lustyfurniturecompany.com/wp/shop/

Is not listed as a page in the WP dashboard. So I can’t select it as a page for my modal popup to appear on.

Hope that makes sense – any pointers very welcome.

Thanks.