It may not be fully compliant to the spec but it does always charge in my experience. It will charge eventually from most any usb-c charger, including Apple's.

It may not be fully compliant to the spec but it does always charge in my experience. It will charge eventually from most any usb-c charger, including Apple's. But, a docked switch requires 15V and not all chargers will provide it, or maybe they just don't provide it to the off-spec switch. Similar story with the HDMI output of the dock. It took a bit of research to buy a charger and HDMI adapter that work with both my switch and macbook, but it was possible and it's nice for travel.