Deploy Android apps via Microsoft Intune from alternative sources

Has anyone experience or knowledge of whether it is possible to deploy Android apps via Microsoft Intune when the source of apps is e.g. the F-Droid app store? I am considering setting up fully managed Android devices at work, and I am also quite fond of the idea of using open-source apps. However, installing F-Droid and giving the users the privileges to install apps somehow defeats the purpose and premise of the devices being fully managed.