At my current job (1000+ employee tech company), I pretty much never receive emails from humans. Plenty of automated notifications and the odd marketing mail, but everything else is Slack and Zoom.
I think it's way better. Email has so many limitations, especially as soon as you're in a group discussion.
Same here, 300+ people-ish, 3 countries.
Some Very Official things come via the mail, like event invites etc. Everything else is on Slack or integrated to Slack.
Makes spotting phising mails really easy :D
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