Turtle / turtle question

[DPaul]

I know that Turtle is python v2 and turtle is v3.
To import is use this:

from turtle import Turtle
t =  Turtle()

and i can do everything i want.

But is that state of the art? If i do:

import turtle as t

I can do a lot of things, but many are missing, eg. the screen.title() option.
"import turtle as t" seems to be some strange mix with many attributes
referring to the v2 "Turtle" (capital), so it seems.

Does anybody have a clear view on the logic behind all this.
Why would i have to refer to a legacy Turtle when using turtle?

thx,
Paul