Godot 4.0 has been out for a week and I have been working with the Release Candidates of and on with some crashes since January.
So, as a sign of life, here is a work in progress version of the battle ui with auto attacks and heals:
There are hotkey group assignments, click and rect selection, and auto-scroll-to-selected.
Then basic camera movement, unit path follow, and control route creation.
Also auto attacks, as well as some auto use of healing skills and the overhead castbar.
There is still a LOT to do. I'll give an update once some more battle features are done.