Can one filter the calendar to see everything that is actual events (ie. anything but this tag)?
Muting a tag will suppress it from Latest, but it will still be visible currently on the calendar. This could be a further specification on T230851 if people are interested in it in general (i.e. beyond these couple of weeks, to filter out long campaigns, online attendance events, etc.).
You can also view single tags with a URL such as https://discuss-space.wmflabs.org/c/events/l/calendar?tags=wikiclubwest — but this doesn’t appear to work for multiple tags, or to exclude tags.