George Stephanis

Display a “Reusable blocks” listing page, and a link to view all posts containing a given block.
Only displays the number of posts that contain the block, not the number of times the block is used (does /not/ count multiple instances within a single post)
<h3>Props</h3>
This plugin was loosely based on https://wordpress.org/plugins/fabrica-reusable-block-instances/ — some code was simplified and optimized for performance.

Reusable Block Count

Display a "Reusable blocks" listing page, and a link to view all posts containing a given block.

Yes We Work

Adds some basic but vital indexing functionality for Synced Patterns (previously called Reusable Blocks until WP 6.3):
<ul>
<li>Shows Patterns in the main WordPress admin menu</li>
<li>Adds a column to the Patterns list indicating how many times a Synced Pattern appears throughout the site</li>
<li>This count links to a list of all the content (Posts, Pages, and other public Post Types) which includes the block</li>
</ul>
Designed to work seamlessly with Fabrica Dashboard: https://wordpress.org/plugins/fabrica-dashboard/

Fabrica Synced Pattern Instances

This plugin just made it to my MUST USE plugin list... All the advertised features work, but there is one more VERY important feature that I am not sure even the author realizes that this plugin does also.

Right now, through this plugin's screen, or if not using this plugin, in the native Gutenberg's reusable blocks screen, you can import and export ONE reusable block at a time. That said, if you activate this plugin, you will now have the option to export ALL reusable blocks with one click, which is very useful if you have dozens of reusable blocks. To export all of them in one file, go to Tools->Export, and you will get the option to export all your reusable blocks.

Everything that this plugin does, SHOULD be part of the WP core, no excuses, everything this plugin does, is extremely crucial. 

Some history... The blocks export feature in the Tools->Export screen was available when running WP 4.9x, and using the Gutenberg plugin. The export option from the Tools screen disappeared when Gutenberg was merged in the core. In December 2018, I notified the developers on slack abut this, in their core channel, and I was swiftly told to report it in the Editor channel, which I did immediately. The answer I got there was that this function should be restored, but never did - 3-4 months later. This plugin brings back the ability to export all the reusable blocks with one click, in one file, so I can pack up all my blocks and save them as backup, or simply move them to another website.

Thanks for this great plugin,
Nick.

This is better than the author realizes...

Another simple plugin, that displays this content. Probably should be in core. I also love the fact that it tracks where that block has been used.

Love it

Shows you how many times, and where, a Synced Pattern has been used.

Reusable Block Count vs Fabrica Synced Pattern Instances