> At this very moment of writing this post, I don’t care about the lack of Microsoft support. [...] [U]sing Win10 as a regular desktop OS on a machine connected to the Internet past the last security update, I'm aware that the risk of a compromise only increases as time goes on...

Do they know about LTSC? There is no reason to run Windows 10 without security updates: https://massgrave.dev/windows10_eol (pirate site but you don't have to use their tools, all the information here about update tracks for Windows is still valid)