Looking for a coach to teach me some pointers in Q vs. R endgame [edited-jbf]

I'm interested in mastering this (pawnless) endgame from the Philidor position and beyond. I'm particularly interested in any coach who has a 'system' or 'method' for deciding what moves to choose in specific situations rather than someone who just 'plays it by feel', but any help is appreciated.

King + Queen v King? The method is to push the king back to an edge of the board by ensuring that it can only move in that direction by advancing your king and queen in lock-step.

The slow way to do it is use the queen as a rook, as in K+R v K.

The efficient way to do it is to advance the queen into one of the squares protected by the king to minimise sideways movement. Just be careful that when the king isn't in check and is at the edge of the board, that it has a legal move or you'll get a stalemate.

Does this cover it sufficiently or do you need more detail?

[caveat: I suspect that I haven't understood the question.]

Ah sorry, the title is wrong. I meant Queen vs. Rook endgame.

And it seems I cannot edit the title or delete the post. So now I will have to explain my error to every new commenter. -_-

https://www.chess.com/forum/view/endgames/how-to-win-with-queen-vs-rook

https://www.chess.com/video/player/queen-vs-rook-the-philidor-position

https://www.chess.com/video/player/queen-vs-rook-the-2nd-rank-defense

https://www.chess.com/video/player/queen-vs-rook-the-3rd-rank-defense

#1
++ Just practice with the 7-men endgame table base and learn.

I have been doing that, but it still seems there are many unintuitive situations. Other endings have more of a mechanical method.

#8
Yes, it is a hard endgame.
Even Kramnik said he was unsure if he always could play it right.
The problem is that the queen has so many moves, some right, some wrong.
Likewise the endgame KQg vs. KQ was in doubt before table bases.