By default, only space admins can access the tag settings page and add, delete, and rename tags. Space admins can also grant this permission to non-admin roles.
To grant the manage tags permission:
Navigate to Settings > Space settings > Roles & permissions.
Find the role you’d like to grant the manage tags permission to.
Click the triple-dot icon and select Edit.
Select the checkbox "Can create and manage tags".
Define which roles can tag entries and assets by using an Edit rule with the Tags (metadata) field. This is only available if you have custom roles.