Much too large GUI appearance on 30" screen
Opening a MS session on a 30" screen seems to cause much too large graphical elements and empty borders around every graphical element in practically every window. Simple font rendering seems okay so far.
I never observed this behaviour for MS 2.x versions.
Use Xubuntu 18.04 LTS on FHD display notebook (here: Lenovo T series, some of them)
Attach 30" screen as 2nd screen
Use 2nd screen as extension of notebook desktop, not as 2nd additional "side-by-side" screen
=> already the splash image is much too large.
Workaround: none known so far.