

While I left bspwm a few months ago, it served me very well for years. Unfortunately, as far as I remember, I don’t think it can do what you’re describing.
That said, setting layout=above in the window’s properties will ensure it stays above others.
You might not be looking to switch to another WM (and maybe not to Wayland), but Niri can actually do what you want, in case you ever feel like experimenting.


Each WM offer a list of features. To avoid creating any negative reactions, I wouldn’t call the differences as “plus” or" limitations" but rather as developers’ choices. KDE can’t do it all either ;)