Do I need to update my FB account profile picture?

 This is up to you. The account is yours and as your preferred account, it will be included in the class GC.

It is however the discretion of the faculty handler to exclude your preferred account from being added to the GC should there be a reason, which may include but is not limited to inappropriate, offensive, or discriminatory profile picture or account name, verified troll accounts, and/or similar scenarios.