I renamed a few of the default categories to better reflect what I need. I wanted to rename "Video Conferencing" to simply "Meeting" (by deleting the original "Meeting" first), but since then, the Meeting Categorization Override does not work anymore. I suppose this override only works with the exact category "Video Conferencing".

So it would be great if we could rename the category, or add a selector Settings > Meetings to select which category is associated to "Meetings".