For taxonomy term archives, the theme uses a Cover block to showcase a large hero section with a term-specific background image. Currently, the only way to do this is to create individual templates for every term (genre, category, etc.). This is not a good management strategy.

Here's a screenshot of the current handling in the admin for a particular music genre:

Instead of manually creating individual templates, we need to create an upload form on the edit term screen in the admin to attach an image as the term featured image. Then, we need to extend the Cover block to support custom block bindings.

Related Gutenberg tickets:

• Block Bindings: Add support for the Cover block background image WordPress/gutenberg#63763
• Block Bindings: Add Cover block support. WordPress/gutenberg#74109

This isn't native to WP at the moment, but we should be able to filter the output and handle this feature ourselves.