Exactly. h or j repeated is widely dismissed as inefficient. But that ignores two important things:

First, you can hold down h or j and use visual clues to know when to stop. It's one keypress on the homerow, no reason to even glance at the keyboard. Eyes on the monitor = better focus. One keystroke.

Second, thinking in line numbers is one more piece of context to load up into your brain (find the line number), then act on (type out incantation), then context switch back to whatever you were doing before. By contrast, holding j until you're in the spot takes up almost zero working memory. You can think while it's happening! It's a small and subtle difference but that 200ms pause in thought process really does add up - not in wall time (jumping by line is probably "faster") but in contiguous focus time. Having to invoke any multi-part command is a distraction from your core work. Again, one lazy keystroke with immediate visual feedback > some complex combination of keystrokes.

An one small pitch for treesitter - rather than use j/k to navigate by line, set up some keybindings to jump by treesitter element (functions, methods, etc). I've got mine set to +/-. This lets you move in the same "dumb scrolling" way but by jumping to semantically-relevant parts automatically rather than line by line.