Office 365 CDN can help you optimize the performance of your portal. While disabled by default you can easily enable and manage it using the Office 365 CLI.
Did you know that you can build scripts to automate managing your Office 365 tenant on any platform?
When installing SharePoint Framework solutions, SharePoint shows you the URLs of external scripts used by the solution. But it doesn't show all of them.
No matter if you're using Windows, macOS or Linux, using the Office 365 CLI you can manage the settings of your Office 365 tenant.
Many articles about building SharePoint Framework solutions mention uploading your files to a CDN. But are you sure you actually need one?