Mostly because if you’re working on a MS centric company and you’ve a lot of integration with other MS tools people then need Word and Excel. Besides, Zoom is the biggest piece of shit communication software out there, MS Teams is way way better both in call quality and in screen sharing. Zoom doesn’t even come close to MS Teams on that last one. Once you’ve documentation with dynamic references to other people, meetings, excel sharing data to and from sharepoint and sometimes NAV then it gets really hard to use docs. Besides calc can’t still do some advanced formula features.