Using New Outlook on Windows for personal email, calendar, and contact management
>> I don't even know where to go to change any of the settings
You make the change at your DNS hosting provider.
>> At least provide a video tutorial or better create a menu or wizard where the settings can easily be adjusted step by step with explanation and video.
That is a monumental task because there are many DNS host providers in the entire world. If they manage to provide video tutorial, you still wouldn't understand it and be lost. This issue is for IT or mail administrators to tackle. It isn't for regular mail users.