Overall, how you choose to organize your app commands is a matter of personal preference, but certain options such as “Default Apps by File Type” can usually tend to be a bit easier to manage for the average everyday user.
Though these are the original options you’ll find on a fresh install of Default Apps, you can always use the following options to customize exactly how Windows 10 will handle different requests based on the file type, the program, or an underlying launch protocol.
The only command left up to you by default is Calendar links, which can be tied to your email provider or a third-party scheduling application that’s been installed at a later date.