I am just thinking that, categories are useful, for I have them in my Ubuntu 19.04. I don’t have much apps, so going up and down looking for apps won’t be troublesome, but having categories, I have all the apps right in front of me. I am used to categories, for more than a decade. I have 4 Ubuntu 19.04 installs, Ubuntu, Ubuntu-Budgie, Unity and Openbox, and three of them have categories upfront. Only Ubuntu didn’t, so I put it there (OP).
I always read the Team Updates, so the question, should Ubuntu have categories or not? Well, that’s all to that. Hope @jbicha is not getting unhappy on this, for he was always friendly. Just a question, nothing else.