The patch indeed seems to have fixed the issue.
But now I've updated to XUbuntu 22.04 with xfce4-panel 4.16.3-1 and the bug is back, which means that the also needs to be applied there.
The patch indeed seems to have fixed the issue.
But now I've updated to XUbuntu 22.04 with xfce4-panel 4.16.3-1 and the bug is back, which means that the also needs to be applied there.