How to Auto Change “Stock Availability” on Quantity Update in Magento 2

Programmatic method to auto change “Stock Availability” on quantity update in Magento 2

Developers often forget the inventory status update after updating the quantity. Hence, the out of stock status is shown in the store front although the stock is updated.

More information : https://meetanshi.com/blog/auto-change-stock-availability-on-quantity-update-in-magento-2/