Mine is using the arrow keys to navigate typed text while writing and editing. It helps speed things up, versus having to move your hand to the mouse to navigate.
Use the Up and Down Arrows to move/jump vertically.
Left and Right Arrows to move/jump horizontally.
Combine Left or Right Arrow with Shift to be able to select text. Use Up or Down Arrow with Shift to quickly select whole/nearly whole sections of text.
Combine Control with Left/Right Arrow to jump whole words to more quickly move to where you want to type.
Not everyone knows the keyboard shortcut though. I bet you can find people hunting for it using the mouse every time.
At my old job (tech support), I watched a new hire once highlight text, right click for the context menu, and click “copy”. And then right-click to hit “paste”. Every time. They didn’t know a single shortcut for anything. It was maddening to watch.
I gave em a lot of help because they were clearly not particularly tech savvy, but it made me wonder how the hell they got through the interview process with such a limited skillset.
How can people not use shortcuts? If that shortcut wouldn’t exist, I would create it using Autohotkey