I think hardcore hardtails have moved on – looking at 150mm+ fork travel and 64 or slacker headangles for the most extreme ones.
My hardtail is steel, 140mm Pike, 65.5 degree headangle, 2.6×27.5” tyres, Codes etc. I’d class that as ‘trail’ these days. It’s a custom Marino but I designed it broadly as a ‘medium’ bit with a few tweaks specifically I wanted. Short 425mm chainstays, short 395mm seat tube for a long dropper post, middling 445mm reach, acres of standover clearance, long headtube (125mm) so the front end is quite high.
Really playful and just a good allrounder. Will do steeper tech stuff without killing you, but also really fun on pedally flow stuff – loves to manual and pop off stuff.