I know this message is almost one month old but do you have any idea how to force the godot folder to show in Application Support ? I know that since Lion some application support folders are harder to find and I have yet to find a way to make these hidden folders appear, did it just show up without trouble for you or did you have to go dig for it ?
I've opened PNGtuber+ before trying to look for the folder and even tried to save the default avatar as a different file to try and make it appear but I still can't see it, and so far your work around seems to be the only way to access those files as long as ESC leads to the -50 error.