No issues with:
manjaro-xfce-26.1.0-rc3-260723-linux71
manjaro-xfce-26.1.0-rc3-minimal-260723-linux71
manjaro-xfce-26.1.0-rc3-minimal-260723-linux618
Minor irregularities:
GRUB still includes splash parameter for plymouth, but plymouth has been dropped from Xfce ISOs. If this parameter is redundant it should also be removed
For minimal ISOs, calamares does not recognise if the tz or lang parameters have been changed in GRUB but it does detect a change to keymap
For the full ISO, calamares does not detect any of these parameters
Changing settings in calamares is simple, but it would be better if the installer could detect all locale settings from GRUB and user does not have to implement changes twice
All ISOs are using a illyria-default-lockscreen.jpg for lockscreen background,
but desktop background is xfce-x.svg not illyria-default.jpg