Normally the desktop categories page layout is set via a global site setting. When added to a theme, this component will allow you to override the layout of the categories page for that specific theme.
Installation
Repository Link
https://github.com/tshenry/discourse-categories-layout-override
This component can be installed more than once if necessary. If you do this, it is recommended to modify the name so you can keep track of which layout is associated with each copy of the component.
If you are unfamiliar with theme components and how to install them, check out the theme installation guide . And if you’d like to learn more about Discourse themes, take a look at this guide .