Delegates in the new Microsoft Outlook for Windows and web can create and apply categories for the account owner's Calendar. Rollout starts mid-January 2025 for Targeted Release and mid-February 2025 for General Availability, completing by mid-April 2025. No admin action is required.
Applies to: Exchange Online · Microsoft 365 apps
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).