Is there a way to change the default name? I want to change my name so I can secure my username I use.
Waypoint uses your Xbox Live Gamertag / profile as your user name here. You need to change your tag if you want it to show up differently here: https://support.xbox.com/en-US/my-account/manage-gamertag-and-profile/change-xbox-live-gamertag
If you already have a gamertag then it’s likely that you signed in here under the wrong Xbox Live account. In that case, mamse sure that you are signing in with the correct email address and password that match your actual gamertag.