There are two ways to become a moderator of a group: Either you are the founder of the group and automatically receive the moderator role, or the founder actively appoints you as a moderator and grants you the corresponding rights.
There are basically two ways you can become a moderator of a group:
The first way is that you are the founder of the group yourself. In this case, you automatically receive the role of moderator, as founding the group comes with this responsibility.
The second way is that the founder of the group actively appoints you as a moderator. This means that the person who created the group transfers the moderator rights to you, so you can also manage and moderate the group.