The marketing of it as "looks and feels like Windows 11!" is probably the biggest hook, if one can assume the majority of the 780k are non-powerusers who are wary about the end of Windows 10's support, and getting pwned on the Internet...

Microsoft is forcing win 11 updates with a bunch of AI features nobody asks for or wants.

The new features render millions of windows machines unable to run the new version leaving them ripe for for an upgrade to Linux.