Intune Policy refresh Interval – Sync time

For the recently enrolled devices (New devices)
If devices recently enrolled, then the compliance, noncompliance, and configuration check-in runs more frequently.
The check-ins are estimated at:
Android, AOSP Every 3 minutes for 15 minutes, then every 15 minutes for 2 hours, and then around every 8 hours
iOS/iPadOS Every 15 minutes for 1 hour, and then around every 8 hours
macOS Every 15 minutes for 1 hour, and then around every 8 hours
Windows 10/11 PCs enrolled as devices Every 3 minutes for 15 minutes, then every 15 minutes for 2 hours, and then around every 8 hours
Windows 8.1 Every 5 minutes for 15 minutes, then every 15 minutes for 2 hours, and then around every 8 hours

For existing devices (already enrolled devices):
Android, AOSP About every 8 hours
iOS/iPadOS About every 8 hours
macOS About every 8 hours
Windows 10/11 PCs enrolled as devices About every 8 hours
Windows 8.1 About every 8 hours