I think the official EOL is sometime next year.

MS got themselves into a bit of a pickle from what I can tell. Win11 requires some security thing in a separate chip or inside of Intel CPUs built after some point. They’ve played a hard line saying nothing will work on Win11 without that bit of hardware. By EOLing all Win10 machines and forcing them to upgrade to Win11, they’ll turn a LOT of hardware into bricks. Last week they announced they’re going to back-down on that and will allow Win11 to be installed on older hardware without that chip. And ... they just announced they’ll even offer a subscription to keep Win10 updated with security patches for another 5 years or so, like they’ve been doing with Win7 for a while now.