One that people don't seem to mention enough to me is that neither macOS nor Windows have ANY feature remotely close to the magic SysRq key.[1][2]
Not even Control-Alt-Delete is remotely the same.
ALT-SysRq-f, which will "call the oom killer to kill a memory hog process, but ... not panic if nothing can be killed," should truly be available on every modern operating system, but nope, only Linux has it.