Windows 11 Upgrade mit Intune

Hello Stefan. The feature Update Policy rollout has its own schedule which is seperate from app deployments. Multiple components are at play here which does not really make it easy to determine what is causing the delay here. 

Are the devices that are slower to update targeted by a different update ring policy? The feature update deferral option in the update ring policy can cause issues, Microsoft recommends setting this value to 0 for all update rings that are paired with a feature update policy.

Are there any gpos that might interevene as well? You can check if GPO settings apply for windows updates on your device in settings ->windows update -> advanced options -> configured update policies

Please check these settings and report back here so that we can keep working on your issue.