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Windows 10 LTSC – the version that won't expire for years
(go.theregister.com)
This is a most excellent place for technology news and articles.
What would be the point? That's just staying on Windows, with extra steps and lower performance.
They mention their equipment is legacy and only supports Windows 10. An Airgapped VM of Windows 10 is a good option to continue supporting legacy hardware.
The VM protects somewhat from network attacks and spread. But, I do imagine most vulnerabilities of Win10 would still be exploitable, and you would be sacrificing some performance, yes.