Earlier quoted context omitted.
> they all claim Google Workspace has a substantially higher market share than Office 365, and anecdotally that matches my experience. I 100% believe that is your experience as 'HN-commenting SWE/tech bro/STEM worker', but just as strongly doubt that that is correct in the broader market.
Like I said, every source I found claims the same thing. Do you have data showing it as a distant second?
This site claims Office365 absolutely dwarfs Google Workspace in # business customers/licences , which is more in line with my expectation: https://www.bybrand.io/blog/market-share/amp/