Fediverse groups are really useful accounts to follow. They are sort of "super hashtags" as their posts reach everyone who follows the group, no matter what server they are on. You can find out more at:
➡️ https://fedi.tips/how-to-use-groups-on-the-fediverse
They aren't like groups on other platforms, it's better to think of them as hashtags that federate more effectively.
Follow a group to see its discussions in your timelines, mention a group to post to it. (It's like old-style email discussion lists.)
