Bike weights get a bit silly, and I’d not want to be hammering a 23lb anthem around my trails as I like to ride ‘fun’ stuff rather than XC motorways 😉
Something has got to give, to become flexy and less capable, by going super light. Wheels are the obvious place, I’ll always make sure I have some good tyres and strong wheels regardless.
My XC bike is about 28lbs and the enduro bike is 33. A happy 33!
I use salter samson electro digital scales, regarded as extremely accurate (I bought them for weighing fish, something that’s taken very seriously in the world of angling!).