Salable qty = 0 but product still in stock?

I’m using Magento 2.3.6-p1 and I understand that when an order is placed, only salable quantity goes down and actual quantity is deducted when a shipment is created.

That would be fine if salable quantity = 0 meant product goes ‘out of stock’ on the front-end… But that doesn’t happen. Product still appears as ‘in stock’ until it is shipped.

Is there any fix for this bug?