Does it keep your windows in place? Resize/move them properly when you switch to a smaller resolution screen then resize/move them back again when you go back to UHD?
I found the situation is worse if I extend my monitor's screen onto the laptop, because when I unplug the monitor and plug it back again, all hell breaks loose.
I found the situation is worse if I extend my monitor's screen onto the laptop, because when I unplug the monitor and plug it back again, all hell breaks loose.
(This with the latest KDE that Ubuntu 19.10 has)