With v8 version (didn't test on v9) : the "in stock" or "out of stock" don't display in product page
instead, there is a text displaying "Product not available", only for products with variants (otherwise nothing is displayed)
And when we add the product in cart, there is a message on the cart page : "You can't enter more than Available Quanity (0 for product : xxxxxxxx) ."
With v8 version (didn't test on v9) : the "in stock" or "out of stock" don't display in product page
instead, there is a text displaying "Product not available", only for products with variants (otherwise nothing is displayed)
And when we add the product in cart, there is a message on the cart page : "You can't enter more than Available Quanity (0 for product : xxxxxxxx) ."