Microsoft built a whole another company called Azure. Smartly acquired 2 other companies called LinkedIn and Github. Then invested early in the biggest phenomenon of the post covid world - Openai.
Google ended the 2000s with Ads, Search, Youtube and Android. It's 2023 and not much has changed. Facebook sustains it's growth entirely through multi-billion$ acquisitions.
In all cases, the original middle management did very little to help.
Azure is the only exception.
Office 365 + Sharepoint is a major, major business.
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.
0: https://www.extremetech.com/deals/307468-microsoft-azure-is-...
They do already have several "train your own model"-style ChatGPT products available though.