Windows 10 end of life is October 14, 2025, you have plenty of time left. With that said, there are plenty of ways you can bypass the arbitrary W11 requirements. Creating a bootable usb media with Rufus, being one.
I've tested W11 on my ancient 5930K numerous times, without any issues (outside of W11 being absolute garbage, regardless of hardware specs, of course). This CPU also isn't on the supported list, just like yours.