There’s tactile feedback for that too. You learn how many “clicks” of the knob you need.
Rapid feedback is important.
I know the one it was on, and I know how far to turn it to get to the one I want. This removes the necessity of looking at it.
Same for steering wheel buttons (e.g. Up - next track, down - previous track, same for volume)
Same for wipers - only 3 positions and you can tell by their speed which position it's in.
The problem is when manufacturers take existing solved problems and move it to a strictly worse system like touchscreen. That's an inexcusable regression.
When using a touch screen, if you don't know whether the lack of feedback is due to its lag or your bad aim, you would likely take your eyes off the road in order to aim better, given that bad aim is a likely culprit.