It shouldn't be too hard to ID at least if it is Australian vs Indonesian which should give you a better idea if the husbandry is low humidity (30-50% on most northern blue tongue care sheets) or higher humidity (60-70% or higher on a lot of Indonesian species from what I've seen on care sheets)
Most pet store ones are irian jaya or marauke or one of the other indo species.
This has pics with some identifying features of the different species.
https://www.reptifiles.com/blue-tong...nk-subspecies/
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