I continue to go to Discussions Home a lot to look for the tag to take me to - what used to be a forum - discussion section.
But the tags for each section are simply alphabetic under the section name such as “UI”. which means you have Accessibility and App-UI (an unknown or internal package tag!) coming up at the start and UGUI (called Unity-UI here interestingly) coming up last yet UGUI is probably the most commonly used area of Unity UI still.
Perhaps the tags on the home page should be ordered by usage/importance therefore, maybe even make some tags smaller, less prominent? Indeed tags could be ordered and sized by usage-count in discussions
Meanwhile I still can not seem to be able to add a topic under the tag I currently have opened, such as Unity-UI. I have to choose all the options with nothing filled out as a starting point