The graph api doesnt support adding $count to the the search API, neither does it allow querying sites with count.

Is there any way to get the total number of sites in a system with one hit.

Variations tried:

https://graph.microsoft.com/v1.0/sites?search=*&$select=name&$top=999
https://graph.microsoft.com/v1.0/sites?$count=true

Thanks