@joyously, I think you have misunderstood me. What I am saying is different. When you login to WordPress Admin if you click Posts and the choose to Edit a Post you have a lovely interface and can use the Gutenberg Editor to add blocks and make that Post or Page as you want.
If you go to Categories, Edit -> Category you don’t have a lovely editing experience but instead you have to work in a tiny textarea.
So my original message was saying “Why can’t we have a better editing experience for categories too? Why do Pages and Posts get all the attention?