Hi David. Today, there are no Microsoft tools or supported methods to directly convert an existing Windows endpoint from domain-joined/hybrid Azure Active Directory join to Azure Active Directory join. The current strategy is that, assuming you've fully embraced cloud-native Windows endpoints, the reset has zero true implications as the endpoint and user's configuration including apps and data are fully portable and fully restored after the reset. We understand that's potentially easier said than done and so are investigating the possibility of a tool. AT this point though, this is just an investigation so there's nothing more to share.