No it isn't. It would be surprising if Elizabeth II bothered to personally write kernel code, but it's hardly unbelievable. Unless you're being absurdly pedant

No it isn't. It would be surprising if Elizabeth II bothered to personally write kernel code, but it's hardly unbelievable. Unless you're being absurdly pedantic about England-the-kingdom technically not existing because it's actually part of Great Britain/the UK now, but if so, you should probably say that.