The "download" path you choose depends on your deployment strategy:
Regardless of your deployment model, you can download client apps for mobile, tablet, and desktop use. Where to Download Business Central Installation Files dynamics 365 business central download
Official installation media is hosted by Microsoft. For on-premises setups, you typically download a compressed .zip file containing the product DVD. What is Microsoft Dynamics 365 Business Central? - Cargas The "download" path you choose depends on your