If this is not the case it will not display the default from the newest version. I guess @ninos changed it manually to the F41 image and not over the .jxl . When not mistaken we changed the default from png to .jxl ?!
While default.jxl is a sim link which points to /usr/share/backgrounds/f42/default.
I understand there are differences and that is why I showed what works for me on Workstation. Simply intended to hint that there may be a tool to set that for him. I am not familiar with xfce but many spins have similar tools.
I didn’t change anything.
I just upgraded from 41xfce to 42xfce.
The settings/desktop menu does not have the new green background at all,
so I can’t choose the new one.