I’d agree on angular but for most the others including hangouts the problem is that it isn’t just an update - it’s an entirely new app/service. Meet isnt superseding hangouts - google is killing hangouts and offering a new app in its place. Can you imagine if Apple killed off iMessage, didn’t offer a way for people to transfer data and then just offered half the functionality to people in a new app? Google is an absolute shitshow these days.