audio and video calls are not supported via the web ... yet.
RTC support is coming soon.
I have 10122 installed on an Acer W4, I'm frequently triggering search by accident and once it takes it's quarter of the screen, there's no way to close it. tapping outside it's area should do it...
now if we could just get the dark theme from Visual Studio applied to Office!
still holding out hope that I'll be able to stream the existing several hundred gig of mp3 content in my OneDrive folder.
If it's finished, it needs to be added to the office.com hamburger menu