And thanks for your response.
The virtual machine is not accessable publicly, it is a development environment, and as such I'm not using ssl. The site it'self certaily does work/functionally as expected.
Unfortunately the documentatin specific to this VM release appears not to cover this topic: (https://docs.bitnami.com/installer/apps/drupal). And broad searches that I have made on the same topic respective of this bitnami release return nothing more specific.
"bnconfig" has been an element of the bitnami/drupal architecture since atleast 2014 when I started using bitnami drupal distributions. This version of bitnami/drupal has been a significant departure from the typical bitnami/drupal architecture (likely at least in part due to composer and drupals accommodation fo that framework).
Based upon the searches of the VM file system that I have already made it, appears to me that either "bnconfig" is no longer part of the new architecture and documentation is not yet released, or "bnconfig" has been accidently missed from this VM release...?