I am trying to understand if all the result I get through /users are cloud users? onPremisesSyncEnabled property return true for users that are (cloud + onPrem)

Question

I need list of users that have cloud account and rest of the users with only onPrem mailbox.

Answer 1

result I get through /users are cloud users?
Yes, graph api GET /users will returns both cloud and onprem synced users.

onPremisesSyncEnabled property return true for users that are (cloud + onPrem)

I don't see this behaviour. onPremisesSyncEnabled should only be true for onprem synced users.
Can you compare the other properties like onPremisesLastSyncDateTime for the cloud users that return onPremisesSyncEnabled= true. All these values should be null for cloud only users. If you see them then its very specific to your tenant and you may want to create a support request.