You don’t need to be a commander to form a squad but you are limited to what you can do.
As a commander you get full function but you cannot hide the tag.
This is the real new purpose for the commander tag and how it differs from a Mentor tag.
This is assuming the things I read were correct.
Guild Leader of Lunar Tree[LT].
Officer of Power Overwhelming[ZERK].
First term Forum PvE Specialist.