microsoft 365 & google workspace have maybe 4-5 years of relevance left simply cuz the document/spreadsheet paradigm itself will become mostly irrelevant. i.e. it already makes zero sense to draft, review, or analyze anything without a native ai environment around it. that gap only widens over time. & most communication incl. email, chat, status updates is heading toward agent mediated flows where humans set intent & ai handles execution. this leaves the incumbents stranded with human first…