Is there a difference between "Manage permissions" vs. both "Manage permissions" and "Manage membership"?

In the Group permissions tab in Settings/Groups, is there a difference between granting Manage permissions vs. granting both Manage permissions and Manage membership? As far as I can tell, the former grants all the permissions of the latter and more.

For context, I’m training others in permissioning and this is confusing us.

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Everything that Manage membership allows you to do is also given by Manage permissions. Having both is allowed but does not add anything.

We will look into simplifying this picker, thank you for pointing out your confusion!