A big reason people don’t get the same exact sound is in large part because it’s the sum of the parts and you don’t have all the same parts. Hands ie… pick attack style and muting style, pickups, pick thickness, string gage, guitar wood, cables, pedals in the chain, amp style and build variances, speakers, cab size, mic or direct, post production or not etc. There’s so many variables.
I think Youtube demos can be a fun watch and to a degree can give you a rough idea of sound capabilities but more times than not those demos don’t really tell much on sound until you get it into your situation. They are great for showing how it’s built, how to use it etc but that’s about it in reality.