With the setup showed in the attached screenshot, windows maximized are ignoring the panel The panel is set on the top of the small screen Reproducible: Always
Created attachment 81620 [details] Result of the maximized window below the panel
Please check bug #322480 comment #2, compare your output to the findings there. If the strut value seems "sane", please undupe this bug. *** This bug has been marked as a duplicate of bug 322480 ***