Convenience factor: CREATE a camera at the viewport location?

While it’s trivial to move a new Camera to the viewport location, it would be convenient to have it simply appear at the viewport location at creation. One less keypress.

Is there a way to do so? Maybe a script?

There is a function that will allow you to do this. Press F3 and search for camera. Camera to view is what to search for.

And also, you can save a scene and have it as your default loaded scene.

Both of your suggestions are wrong, given the question: how to CREATE a camera at the viewport angle and location.

Not “move the camera to the viewport” nor “have a default camera at a viewport”.

Stored Views is an included add-on…that has, add a camera to view…
https://docs.blender.org/manual/en/latest/addons/3d_view/stored_views.html

Thanks for the reminder! That’s an excellent addon, but I keep forgetting it’s there.