Except - like with the car examples above - eventually customers get pissed off or frustrated enough to switch to a different OS (or car manufacturer).
Thus Apple and Linux distro's picking up a lot of ex-windows users. KDE plays well to this audience. :)
Also, likely microsoft has realized there's zero long term revenue in operating systems -- you'll have been forced to move all your data to their Office 365 environment and will be paying them rent regardless of if you use a windows or a mac or a linux or an oracle desktop.
I think if steam decks gets a good linux desktop, similar to windows in look and feel, that can be run on a desktop, parallel to windows. Its over, very suddenly, very brutal.
And here it is: https://store.steampowered.com/steamos/download?ver=steamdec...
A challenger appears. He is unburdened by the need to advertise. Its super effective.
> Vendors are buying windows from Microsoft and installing it onto a computer and selling that computer to you. You are buying a computer not windows.
Sometimes people are buying Windows[1].
It is possible to be the customer for the OS and the product for the ads at the same time.
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1. https://www.microsoft.com/en-us/d/windows-11-home/dg7gmgf0kr...