I started using Database Actions instead of SQL developer (classic or VC-plugin) after we created an Apex Autonomous DB instance, because we cannot connect with clients to such instances. Although it behaves a bit different I can work well with it.
However, I have noticed one thing that is quite annoying: When I open script files from the filesystem (where our git-repository is checked out) I seem to be able to select only files with extension .sql (although .pks and .pkb are selectable as well). But files with other extensions (we e.g. use .vw for view scripts) can not be selected. I do not think it is a good idea to force usage of file extensions. We use the naming conventions regarding file extensions for decades and a tool should not force us to abandon that.
I would suggest to either allow any extension, or to give the possibility to configure the list of allowed extensions in the preferences.