Discourse would greatly benefit from a built-in Tag Intersection Navigator, similar to the one developed by @merefield
Tag intersections are a core navigation feature in many modern forum platforms including Discord, Nodebb and more. Supporting this natively would significantly improve content discovery, filtering precision, without relying on custom implementations or plugins.
Making this a first-class feature would align Discourse with common forum UX expectations and enhance the experience for communities that rely heavily on structured tagging.
It could be something like (relative to category tags):
I know about that, but that’s a different thing and not as user friendly as to just pressing multiple tags on the category you’re in to narrow down the topics list in real-time for what you actually care for under that specific category.