Despite all the EOS dates and warnings, you can still get "free" monthly security updates for Windows 7 directly from Windows Update [1]. Windows 10 IoT LTSC support ends in 2032 [2]. If the trend continues, as long as you are OK with some morally dubious practices, you can get security updates for your installation for at least 10 years.

[1] https://catalog.s.download.windowsupdate.com/d/msdownload/up...

[2] https://learn.microsoft.com/en-us/lifecycle/products/windows...