What did GitHub staff use before ? Slack + Zoom ? Mattermost or something else ?
This is switching the intra and inter company video to Teams (which means that GitHub doesn't have to pay Zoom for video anymore).
Intracompany text chat remains on Slack.
edit: ahh i see "inter-company". yeah, Slack huddles start to suck when guest accounts/other Slack instances or externals get involved. got it.