Microsoft Windows Terminal is out and it's time to start doing those tiny little customizations, like making sure we never have to even LOOK at Powershell.exe. In short, you go to Settings in Windows Terminal to pull up the settings JSON file for editing inside Visual Studio Code. You copy the guid from the profile you want in the list of profiles and paste it into the default guid found near the top of the JSON file.
I also reveal a bug in this Insider Preview where the Windows Terminal desktop shortcut icon can't be used to set Terminal to come up in Maximized mode, which is something that's surprisingly critical for folks like me who live and die by keyboard shortcut-induced Terminals.