@Fadi Alzebdeh Thanks for posting in our Q&A.
Based on my understanding, if the device is already joined to Microsoft Entra, there is no method to auto enroll devices to intune, except the device is Microsoft Entra hybrid joined device.
https://learn.microsoft.com/en-us/autopilot/existing-devices
From Microsoft Entra registered or Microsoft Entra joined devices, it is suggested to remove all the devices records in intune portal and Microsoft Entra ID portal. Then re-enroll them.
Thanks for your understanding.
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