I run Hlwm with Polybar. In Bspwm fwiw it behaves. In Hlwm it overlaps any open window. Can't find where to offset windows/frames so Polybar is not sitting on top. Moving it to the bottom from the top and vice versa makes no difference. A further issue with Polybar is it rounds the corner in the left module with the tags, but stays square on the end with the tray icons.