Our site's chat room information now provides Discord and Matrix as the 2 options:
https://grapheneos.org/contact#community
We're not listing Telegram because it's a much worse experience than Discord.
IRC is available but too limited especially with most people using Matrix and Discord now.
GrapheneOS
in reply to GrapheneOS • • •We added https://grapheneos.org/discord as a redirect to a permanent Discord invite link to make it easy to remember and share.
For Matrix, joining #community:grapheneos.org provides a list of all our non-archived rooms. 2 main rooms are regrowing after recently being bricked.
Join the GrapheneOS Discord Server!
Discord