Hi @sns
Gloabl navigaiton will not show in the list from your attached screenshot in teamsite.
You need to go to site settings> site collection features> active SharePoint Server Publishing Infrastructure
Then you could go to site settings> Navigation
For more information, you could refer to: https://support.microsoft.com/en-us/office/enable-managed-navigation-for-a-site-in-sharepoint-49a067dc-77d2-455d-9e77-250ec7cc0a6d
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