For example, I just tried to go to https://kglitch.social/m/[email protected] to subscribe to it, but it shows a 404. At least https://kglitch.social/d/midwest.social worked, but https://kglitch.social/d/compuverse.uk doesn’t (nor does https://kglitch.social/m/[email protected])
Apparently searching for the full exact community name in the ~~community list~~ <ins>general search</ins> works.