@Ritesh Sharma , From your description, it seems one device which is manually enrolled to Intune is unable to see apps under company portal.
Based as i know, for the app deployed as required app, it is not shown in company portal. Given the situation, please ensure the app is deployed with Available intent and that the user is accessing the Company Portal with the device type supported by the app. here is a link for the reference:
https://learn.microsoft.com/en-us/troubleshoot/mem/intune/troubleshoot-app-install#user-group-targeted-app-installation-does-not-reach-device
However, if the issue is still there, please collect the following information to clarify:
- Is the app deploy with required or available? Was it assigned to user group or device group?
- What is the Azure AD join type of one working device and one not working device? Is there any other difference between the two devices records in Azure AD and Intune?
- What is the windows version of the not working device?
Please try the above suggestion and if there's any update, feel free to let us know.
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