I did not say QBDT or QBO calculates depreciation
what I said was that the data needs to be in the company data file
depreciation always calculated outside QB and is a journal entry in both QBDT and QBO, debit deprec expense, credit accum deprec

If you have the cost basis in one FA account, and the accumulated depreciation in a sub account, per item being depreciated - the book value is right there.

Whether that information is presented as a table in a report, is just someone's preference on reporting

If accumulated depreciation for ALL fixed assets is being posted ONE account - that is also a choice - I think that choice is wrong - but that is an opinion and not a rule.