Created attachment 8113 Screenshot of the bug After 354ebfb3d panels no longer reserve space if they are at the bottom or the right edge of the screen. See attached screenshot. This still happens on master at time of writing.
Link to the commit: https://git.xfce.org/xfce/xfce4-panel/commit/?id=354ebfb3dd226439b2d8bef8198217f0c82c150d
Created attachment 8117 screenshot with panel on right
Patch: https://git.xfce.org/users/ajb/xfce4-panel/commit/?h=strutfix&id=2e151be4f0e48b8ce9b292c8a4e0cfd884467bcc
Better patch. Please ignore the other one: https://git.xfce.org/users/ajb/xfce4-panel/commit/?h=strutfix2&id=ea306dd027c217c2a7376d2c62aede3b2b61aa4e
Alistair Buxton referenced this bugreport in commit 5de1be8280cca97a19f25a85049170bf6e757b4c Fix struts on the bottom and right of the screen https://git.xfce.org/xfce/xfce4-panel/commit?id=5de1be8280cca97a19f25a85049170bf6e757b4c