“With the release of Windows 10 21H2, Windows offers inbox support for Mopria compliant printer devices over network and USB interfaces via the Microsoft IPP Class Driver. This removes the need for print device manufacturers to provide their own installers, drivers, utilities, and so on. Device experience customization is now available via the Print Support Apps that are distributed and automatically installed via the Windows Store,” the company wrote.
The device manufacturers have to send the driver to Microsoft to get them signed. Windows needs some sort of drivers available out of the box. Might as well keep them up to date with the signed versions.
It’s been this way for some device types for at least 20 years.