Guest Users that are not signed into an account can not see text chat, hear audio chat, see video chat from other users, or see screen sharing from other users. They also can not send text chats, enable audio chat, enable video chat, or enable screen sharing.
If a Guest User clicks on the text chat bubble, the enable microphone button, the enable video button, or the screen sharing button, they will be immediately prompted to make an account.
On the other hand, a registered users can access all the available features.