In the 70s/80s/90s your software didn't change every day. Google started with xmpp with Talk, but it didn't evolve fast enough to add new features. In Talk days

In the 70s/80s/90s your software didn't change every day. Google started with xmpp with Talk, but it didn't evolve fast enough to add new features. In Talk days I had to dismiss notifications from every device, even though I'd read it on one. And file sharing, video calls, audio calls, group messages didn't work well. The internet enabled software to update every day, that made standards way less relevant, sadly. The HTML5 model of standards is probably best for the modern world