Would it be possible to provide an MSI installer that would allow us to move away from the public Appstore approach?

We are looking at MSI’s as a method of deployment for those that cannot affect an install through GPO or browser management. Any MSI that we do provide will be the standard package and will include an auto update URL of the respective store. Management of updates would be a setting for the organisation or the endpoint as per: https://support.google.com/chrome/a/answer/6350036?hl=en