Published on 12, July, 2020
Oh, really? Hmm. Interesting.
I've got all three of my eyes on you now, Microsoft.
Windows NT - Wikipedia
There were MIPS and PowerPC versions of windows NT 4 (and earlier) available, but support for most non-intel platforms was dropped with windows 2000.
I think it was also used as a basis for windows CE, so arm is supported through that.