In Sublime Text I actually use a quick Undo-then-Redo to navigate, of all things.

I'll be typing some code and realise I need to check whether the imports at the top of the file are correct.

So I'll Cmd+Up (go to the top of the file) and see that yes, they are correct. Now I have to get back to where I was.

A quick Cmd+Z,Cmd+Shift+Z does the trick - Undo (takes me back to the code I was editing, and undoes some of it) and Redo to put it back to how it was. Works well, but would mess up this researcher's statistics.

(I absolutely do also use the undo stack for looking at the last few minutes of history too, that's really valuable)