How to know Microsoft Search rollout has completed in your tenant?

[Deleted]

Hi,
what would you say is a surefire way to determine if Microsoft Search has been completely rolled out to your tenant? The new global searchbox has been available to our targeted release users for about a month or so. I cannot tell from random search queries in SharePoint Home, OneDrive, Office.com or from site collections, tough. The Microsoft Search admin center setting is also available in the new M365 admin center UI. Bing.com search seems to be working.

What would you recommend I check?

Thanks.