• What components of SQL will be being installed on this new setup?

    Do you need SSAS, SSIS and SSRS?  If so use Windows as they are not supported on Linux just yet, if its just the engine, look at what is not supported yet on Linux and see if you'll be using any of the features, if you are then you have to use Windows, if you're not then you can choose which one you'll be most comfortable supporting.

    https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-release-notes#Unsupported