OK . . . seemed like the only option to move from 15.6 to 16 was by using the migration tool . . . sort of ended by saying “the dry run is over” . . . but repos show I am now typing this in Leap 16 . . . so new system is installed to now monitor for misbehaviors.
Seems like if the system runs fine, XFCE installed w/X . . . then no reason to install Wayland?
The only significant personal error in the install was I created and mounted the /boot/efi partition, which then wiped out the TW os-prober function . . . leaving the cold boot to go to grub error window . . . because I removed grub2 from the new Leap installation . . . .
Have to boot to the BIOS and then select TW to get to the grub menu provided by TW. Ran the mkconfig command in TW, but it didn’t clear the grub error window stemming from the new Leap 16 install . . . jumping from fry pan to fire . . . as usual.
Anyway, new system now under heavy testing. One thing I notice is that trying to expand windows to a larger size, requires mousing back and forth over the edge numerous times to get the drag window function going . . . that is the same issue happening in the old Leap system . . . . We will see what shows up . . . one thing now the migration has occurred via the “supported methods” . . . might make a difference to function or . . . ???