>I'd certainly say PWA is something that could only come out of the mind that brought us Kubernetes

How so? PWAs are awesome! Democratizing for users. Democratizing for developers. They work well for the right class of apps. They would go much further if there weren't forces actively resisting them. Think of all the electron type-apps out there. Now imagine if the average Joe could just install them from the web with 2 clicks.

(Regular ole bookmarks get you a decent percent of the way but clearly something extra than that was needed.)