Thank you very much for playing and for your detailed feedback.
Seeing behind the trees is a must for such game, I agree.
I’m not sure that I fully understood the issue with grayed-out moves that you had, but I will try to reproduce it according to your steps.
As regards the browser, Firefox on Mac, unfortunately, has an issue with Godot. Shader compilation works very slowly, AFAIK. There could be a workaround similar to Chrome, i.e. to start Firefox from the command line. Need to check.