@Ranjan Baral, Tapas,Thanks for posting in Q&A.
From your description, I know you want to configure a shared device and allow multiple users to login at a time.
Based on my research, the official document mentioned that Shared mode device allow different users to login at different time, but it allow one user login in at a time. It seems that you want to multiple users to login in at a time, and currently, there are no such features that can configure a shared mode and allow multiple users to login in at a time.
https://learn.microsoft.com/en-us/mem/intune/configuration/shared-user-device-settings
If you want Intune to implement this feature, you can submit feedback to Intune to see if Intune can have this feature in the future.
https://feedbackportal.microsoft.com/feedback/forum/ef1d6d38-fd1b-ec11-b6e7-0022481f8472
Thanks for your time and kind understanding.
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