Earlier quoted context omitted.
There is no other earth to sell copies of Office to. Very hard to have growth there.
By that metric, Slack, Jira etc are finished because they don't sell to alien civilizations. The number of employees that need Office 365 accounts is always going to be more than the number that need a Figma, Salesforce or chatGPT account.
All you've pointed out is Wall Street's demand for eternal growth is untenable, as if we didn't already know that.