I too am curious about the, imo, overemphasis on Unix clones in research and hobbyist OS development. All the shenanigans with modern Windows aside, I am genui

I too am curious about the, imo, overemphasis on Unix clones in research and hobbyist OS development. All the shenanigans with modern Windows aside, I am genuinely a fan of NT's design, think it does several things better than POSIX and Linux in particular (notably, the things you mentioned, plus anything to do with device drivers) and wish the open source OS world took more inspiration from it. Yeah I know ReactOS exists, but it's held back by its lofty goal of being a complete, bug for bug compatible Windows clone with full Win32 userland, when I'd be happy with just an open source NT-like kernel.