Win 10 IoT LTSC 2021 is supported until 2032. the ESU is literally just security updates they will be doing anyway.
if you have any windows software that can't be replaced and needs to be online running IoT is one solution.
protip: Windows runs faster under a VM in Linux than on bare metal. True facts.
it's just a meme ... with a kernel of truth.
when running as your main OS windows very quickly gets bogged down with everything you want to run on it.
in a VM you're only running the 1 thing you need on a fresh install, potentially a screenshot of that fresh install so it's always running at peak.
does this make up for the host overhead? maybe ... Linux has never struggled under base load for me like windows has.