While that suggestion is music to my ears (I've been using Linux/BSD on my private machines for over 20 years), for the overwhelming majority of users, that is

While that suggestion is music to my ears (I've been using Linux/BSD on my private machines for over 20 years), for the overwhelming majority of users, that is not an option. Tons of applications are available only on Windows, and sometimes on macOS. I second-hand observed one case of a company trying to migrate from MS Office to LibreOffice only to realize that they were using add-ins for Office (something SAP-related, IIRC) that were/are not available for anything but MS Office. Unless Microsoft themselves push for a (yet another) "year of the Linux desktop", I don't see it happening on a large scale. The other option would be for customers (large companies, government agencies) to demand for a change en masse and invest the money needed to make it happen, which I don't see happening in at least the next decade either, as much as I would love to see that. EDIT: One more option I could think of would be for online security to become such a nightmare large corporations see their profits dwindle, both tech companies and "old school" companies who have become accustomed to using the Internet for their business. Imagine a world where you need to do a clean install each time you connected to the Internet to ensure no sensitive information is leaked and no malware infests your machine. A world where opening an email has become so risky people prefer going back to snail mail and fax. And so forth. I don't really see that happen either, but it seems slightly less unrealistic than the above scenarios.