Charging in and DisplayPort out on the same socket would mean an additional dongle or hub or something, so there's at least that reason for having both.
Charging in and DisplayPort out on the same socket would mean an additional dongle or hub or something, so there's at least that reason for having both.
Couldn't one charge from the display connected to?
Both ports support power delivery, so you can still be plugged in and use DisplayPort out.
Not necessarily - you just need a display that has USB-C input and supports USB-PD.