The powershell terminal is a little better than the normal CMD shell, but there's some weird stuff there... Why are they still using the block selection for copy-paste? Never has that been what I wanted
It was quite reasonable 25-odd years ago - which, until recently, was probably about when anybody last touched the code...
(To make line-based copying and pasting work I would imagine they had to do some quite invasive surgery at some point... the idea that the window is backed by a screen buffer that's a fixed-size grid of (attribute,character) pairs is exposed quite openly in the API.)