A person who created the workspace will be defined as the Workspace Owner. Only one user can be set as a Workspace Owner
If you decide to leave a workspace make sure to transfer the ownership first.
To transfer the ownership navigate to the Workspace Settings on the left side menu.
Next to the user who is supposed to be a new Workspace Owner click on the "3 dots" button and choose the Transfer ownership option from the menu. Confirm your action.
Only Worskapce Owner can archive the workspace.