With the Combo Blocks plugin “Terms Query” block, you can easily display post count in terms query.
To begin, insert our “Terms Query” block.
Now perform a query using the Query Terms.
Select the Terms Field inner block from the List View, and select the ‘Count’ option from the Term Field settings.
When editing, the count may not show up correctly, but it will display the expected result on the front-end after saving the page.
Now you should able to display post count in terms query. For assistance, please create a support ticket on our forum.