As of writing this, the only channels presently available are the LFG ones, separated by game titles. So far, the accessible LFG channels include Apex Legends, Call of Duty, Destiny 2, Fortnite, Overwatch, Rocket League, and World of Warcraft.
— GameStop (@GameStop) July 6, 2021
In the future, once the server is no longer getting bombarded by new users, there will also be three other channel sections available. The GameStop section will include announcements, role-selection, media, and streams channels. The second one, Community, will have a general video game discussion channel, as well as a tabletop games, off-topic, and feedback channels.