Let's walk you through the user permissions.
If we select Directory on the left side you will be able to see the list of your employee base. To be able to edit permissions, select the three dots "..." on the right side of a specific employee and then click "edit user" Afterward, the following page should open where you can turn ON or OFF the admin privileges for that account.
Any Admin account will have access to the Slack Workspace setting, SSO configuration, or any specific Office Settings if this privilege is turned on.
There are two more permissions available, Event Creator and Recurring Creator that can be seen from the Directory tab as well.
Event Creator gives the ability for someone to create an event in an office.
Recurring Creator gives the ability to create a recurring reservation on the behalf of other people.