You can join a group directly from the content you are reading.
Depending on the visibility rights of a group, non-members of the group have the option to read the shared content, such as topics.
Interacting with content that belongs to a group you have not joined used to be very complex. Now we made it easier by allowing users to view and join the necessary group right away without having to leave the content.
Meaning, you can join the group directly from the content you are reading, this initiates and helps users to join the group quickly and directly.