Copilot missing in Word, Excel and PowerPoint desktop apps of some users

Hi Everyone,

At my company we're setting up copilot. After allowing access through the Admin Centers we've encountered various oddities.

• Some users can use the sharepoint/onedrive search functionality. But most can't.
• Some users have the Copilot button in some of their apps.
• There is no consistency in which app they get it. Some have it in word, others in excel, some in multiple, some in none.
• A handful of users have Copilot in all apps.
• Things like transcribe work fine everywhere.
• We switched intune to push Office apps with Current Channel instead of Semi-Annual, to no avail. 

We use M365 Business premium with the Teams phone standard addon.