The only thing that hold me back full-time linux daily driving due to workplace uses M$ suites (Office, Teams, Outlook and so on) and CAD program (Freecad pita for me, haven't tried Ondsel addon).
I don't think they would just abandon the support overnight (unless they're being greedy af and want to drive the failed "Windows 11" adoption very fast). The fact that they only make "sudo" utility only for Windows 11 is disguting (though you can do it yourself on windows 10 too), pretty sure they will keep giving security patches just like XP and 7 being legacy system.