How do people chat in the concave-convex world?

The ways to change the chat in the game are as follows:

Change the method of world chat channel. When players click on this world chat channel, the system will automatically assign them to a chat channel with a small number of people. If players unlock the right to speak, they can click on the number of this channel here, and then an input page will pop up, where players can enter the chat channel they want to go.

After entering here, click OK to switch the world chat channels smoothly, but each channel has a maximum number of people. When a player enters a chat channel with an upper limit, it is very likely that the message that the channel is full will not pop up, so it is better to find a second frequency or a third frequency.