blog.0patch[.]com/2019/09/keeping-windows-7-and-windows-server.html
Don't know what'll come of this, &/or if it'll be available to individual consumers, but I could see it being quite popular if it worked as advertised.
Basically they're gearing up their operation so that when Microsoft issues security updates for win10, they can analyze the security fixes, and release their own patches for win7.