Filter CPTs by a linked custom Taxonomy in the WP Admin Dashboard is possible with restrict_manage_posts.
In the screenshot there is a CPT list of posts, with a dropdown menu of a linked custom taxonomy terms which are filterable via the filter button next to it.
The code goes in functions.php
So change to your CPT – example uses ‘light’ and Custom Taxonomy – example uses ‘light_category’.
The action has a late priority of ’99’ so it ends up closer to the filter button in the dashboard.