So back in the day you could get USB C hub and hookup note9/S9 with pass-through charging, but charging speed wasn't enough to keep up with battery drain
playing a game or HDMI out or using GPS split screen with other app while hookup to hub will slowly drain your device even while charging ... eventually it will die.
or say using DEX
question is for people who already bought device S20 tested a USB hub with PD delivery see if there no difference in charging speed while phone is using say SSD or Harddrive or USB camera
and are charge levels while doing this able to keep up with drain speed / actually gaining % in battery rather loosing.
or does the OTG function is what limit all this from charging at respectable level