Hi @bobstayton
I’m not aware of any tool that does this, but if you have access to your database, you could run a SQL query on the posts table to search the post_content field for your synced block.
The first step would be to get the code for the synced block. So for example created a synced block in a post with some text and an image, then I switched to the code editor view and the code for the synced block looked something like this
<!-- wp:block {"ref":77} /-->
Then, in my database tool (I use phpmyadmin) I can run the following query on the wp_posts table
SELECT * FROM wp_posts WHERE post_content LIKE '%<!-- wp:block {\"ref\":77} /-->%'
Note the backslashes before the ” characters, this is required to escape the quotes.
This query returns a result of all the records (posts, pages, templates) that include the synced pattern code.
I asked myself the same question. Wouldn’t it be nice to see it somewhere in WP? Maybe at least on the Patterns Overview Page:
/wp-admin/edit.php?post_type=wp_block
Would be very nice to see easely where synced patterns are used :)!