I use batch quite frequently. For the last few versions of Photoshop (including the one just released this morning) once it finishes executing, the dialog box goes blank, and insists on being on top of all open windows (not solely Photoshop)
The only way I seem to be able to remove it is to close photoshop, which isn't always convenient.
Sorry if this is on the forum elsewhere, I couldn't find it.
I'm currently running MacOS 11.6, Photoshop 23.0.1