Hi - thanks. I turned off MAMP Pro and quit Docker and I got the Bitnami magento VM to work.
I am also able to connect to mysql using Navicat.
I am able to mount the volume and thanks to davidg, I changed permissions (sudo chmod o+w) and looks like I can edit and save files. Now I have to try the steps to update M2.2.6 to M2.3.5 ...
Many thanks to everyone for all of the help.