I’ll give you the simple answer. If you’re on the actual bowling surface (the approach), then no one on the lane to your immediate left, and immediate right, should be on the approach to their lane, until you bowl.
If that doesn’t make sense, let me put it this way. If someone on the lane next to you is about to bowl, you shouldn’t start bowling on your lane until they have bowled.
I suck at explaining things.... :-/
You explained it perfectly. You shouldn’t distract a bowler on an adjoining lane.