"Neighbor noise" drives me absolutely insane, and I live in a row of townhomes with secondary suites. So a family to the left, right, and below.
I would say I hear anything from the neighboring units once every two weeks. Modern townhomes are designed to be as sound-isolating as possible, and it absolutely works. I'm now moving to a vintage apartment and I'm dreading the amount of vibration conduction that the old stick-build apartments have, so
I'm buying a bunch of these sound-isolating panels.