Windows 10 IoT Enterprise LTSC is supported until 2032 and is trivial to obtain and activate.
i have never seen "trivial to obtain" and "LTSC" in the same sentance before.
please, do elaborate
MS doesn't care about piracy at all. They'd rather let you pirate it than losing you by switching to Linux or Mac
Which is not to say most applications won't continue to run, but it wouldn't surprise me if, say, Valve stopped supporting Steam on Windows 10 in five years or so, as they did with Windows <10 last year.