Drupal and Wordpress are often compared because they are both built with PHP/MYSQL and can do a lot of the same things.
Wordpress
Wordpress has a UI that is geared more for content creators than developers. The ecosystem is set up to allow inexperienced developers to build sites with a mix of free and paid plugins and themes. Sites are often quicker to build with fewer features or limited to what's available, but can be difficult to customize.
Drupal is more for advanced systems with complex structures and integrations between them. There is a native Form API integrated with the content model and used by contrib modules. This means when we define the content structure, we automatically get create and edit forms, and all forms in Drupal can be modified in the same way.
Javascript
Javascript frameworks are growing quickly and new CMS frameworks are being developed. I can see the appeal in doubling down on Javascript and using it in the front and back end, but I still can't tell if it's just a novelty. The real test is whether all the expected tools and features are in place to build the things we currently use, or if there's a better/faster way to go.
https://www.sanity.io/nodejs-cms
Static Sites
Static frameworks are also enticing for simplicity and security.