@girish I think the issue with MySQL Workbench is I can't use the latest version as they don't support macOS 10.14 past a certain version, and a colleague on a later macOS can get it working on a later MySQL Workbench version but I can't update my OS at the moment until some other software I use is updated to work with the later OS. Classic catch-22 on that one.
I think the solution to this should just be to use DBeaver, it's free on all platforms, and seems to work on all OS versions. too.
Maybe better to save your time for the odd additional /phpmyadmin/ that might be useful on certain apps.
Certainly appreciate the help and looking, but I don't want to distract you too much given it's a software version compatibility issue and not a Cloudron issue really. Thank you all the same though!!