BeFunkMusicIPS instead of VA (both are oustanding panel types with their own pros and cons, but many prefer IPS over VA). Comes factory calibrated (a weakness of the Vast).
Basically, the Vast offers better performance. The LG offers better overall picture quality out of the box. Pick your poison.
BeFunkMusicI want a USB-C monitor with USB hub, so that I can plug my laptop into the monitor, charge it, and attach keyboard/mouse all with one cable. The Vast doesn't have that, this one does.