HomePod update adds multi-user support, ambient sounds, Handoff, and sleep timers

Apple released iOS 13.2 today. HomePod uses a sort of customized version of iOS, and is updated through the Home app on an associated iPhone. So HomePod updates are often associated with iOS updates, and the HomePod update that comes with iOS 13.2 is particularly impactful. This update brings several of the features that Apple has long promised for its smart speaker, and which its competitors have enjoyed for years. The official release notes lists them quite concisely:
iOS 13.2 provides s