I know the component I chose isn't correct, but I coudlnt find the right one. When using full screen apps previously, they used to cover the panel. But now anytime I use a fullscreen app (either a particular java app that goes full screen or the image viewer feh), the panel stays ontop of it. It didn't used to be like this. Reproducible: Always Steps to Reproduce:
I guess this is filed under the wrong Product/Component but it will not let me change it. It should be xfce4-panel under Xfce.
Due to changes in focus handling, the panel is now always on top. Maximization should not cover the panel area, though. If the application is trying to emulate some fullscreen behaviour you could try using Alt-F11 keybinding to use real fullscreen.
Oh well, I guess I can live with it.
Ok, thanks for reporting.