Hello,

Browse category is a menu created in Appearance > Menu.

Mega blocks for each menu item are HTML blocks and you can insert any content there. For example, you can show all the attributes links (brand, color, type) related to this category.

As for the shop page, you can add filter widgets and set which category it should be shown. So, when you chose the category “clock”, for example, the brand attribute would be shown and you will be able to choose the brand within this category.

Best Regards