@srinivas Pasupuleti100,Thanks for posting in Q&A.
From your description, I know you want to do hybrid azure ad join but device did not show in Intune.
To clarify this issue, please check the following.
1.Check whether the enrolled users own Microsoft Intune and Azure AD premium license.2
2.MDM user scope under Automatic enrollment must set to All.
3.Check the task under Task schedule.
4.Check if there exist some error message in Event Viewer.
5.MFA could be blocking the enrollment. Entra sign-in should confirm that. Try excluding a user and if the works then you can exclude the Intune enrollment app in the CA policy in question.
6.Some of the PCs missing from Intune were currently unused and had never been logged into by an active user-- just a local admin account. Since Intune is licensed by the user, ergo those PCs were not appearing in Intune even though they were successfully Hybrid AD Joined.
Here is a link about troubleshooting Windows 10 Group Policy-based auto-enrollment in Intune
Please check above information, if there is any update, feel free to let me know.
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