How does eOS cope with multiple displays? This is something both Gnome/Unity and KDE suck at. KDE just gets total confused when I connect or disconnect a new display, windows jump all over the place, sometimes they move out of the visible screen area if I switch between hiDPI and non-hiDPI displays, or even just disconnect and then reconnect a UHD monitor. I've seen some reports pointing fingers at Qt as the main cul…
Wait a minute! I use KDE Plasma for at least 2 years constantly and it knows my monitors. I use one at work and one at home and when I plug them it automatically changes resolution and keeps the wallpaper I set for each. Also, got a lot of colleagues switch to Plasma from Gnome for exactly this reason!
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)