catalog view

Hello,
In my catalog, I have several categories.

When I go into the categories, I would like to be able to see:
– subcategories if I have products belonging to these subcategories (that, I get there)
– but also, products that do not belong to any subcategory, just to the category.

On display, when I go into the category of my catalog, I see only the subcategory and not the products without subcategory.

In the options, catalog overview mode, I actually checked “categories and sub-categories”. If I check “none”, I do not see sub categories anymore, just the products.

Is there a way to make sure you see not only subcategories, but also products in the category that do not have subcategories?

Thanks for your help