Quietly, without any announcement, Microsoft have extended the free Windows 10 Extended Security Updates for another year until October 2027.
So you don’t have to abandon your Win 10 machines yet.
The extension appears in a change to the text on the Win 10 ESU webpage:
Windows 10 support has ended. You can enroll in ESU any time until the program ends on October 12, 2027. If you’re already enrolled, your coverage will automatically continue through that date—no action needed.