Are you missing this option or is there any specific output you would like to have?
I will wait for your feedback.
At a Woocommerce product you can set the Stock status of a product: https://paste.pics/501fbfcaa39062a2087f16f002816424
So for example Out of stock or On backorder . That would be great to have it displayed, either as a column (show all status options) or else perhaps as dynamic text in the add to cart button (when there is no stock).
Unfortunately, the feature you are asking for is not available right now.
But I have noted it as a feature request. Hopefully, our development team will add this feature in the coming versions of this plugin.