You can display the exact inventory for selected logged-in users. To enable this feature, go to Catalog Settings > Inventory and check the ‘Exact inventory visibility’ checkbox:
Once you check the checkbox and save the settings, you can enable the exact inventory visibility on the WordPress user profile. Select an user and scroll down to the very bottom. You will see the option:
Once you enable this, the selected user will see the exact inventory for each product instead of the general availability labels.