I’ve lived in shitty apartments but dated two people who lived in “modern” high rise appartments. In mine I heard the neighbours occasionally since they were clearly old motels that they half arsed into units. The modern apartments I practically never heard anyone.

Though “modern” apartment generally price out people who are up all hours making noise it’s more the fact that these appartments usually have body corporates or people that live on site. Being the typical “up all hours stomping around” type would be a quick way to have your lease terminated.

Edit: Duh and the super obvious thing I forgot, improved sound insulation in modern apartments I imagine as well.