I wonder if the circuit board inside of the case is the "same" for the two docks. I've heard that companies will make the same boards and sell them to other companies who will just put their logo on it.
I got one (8-in-1) from a company called Mokin on Amazon that has no issues so far. I can't paste the link but I can tell you that the current title/description for the product is:
USB C to Dual HDMI Adapter, USB C Docking Station Dual Monitors for Windows,USB C Adapter with Dual HDMI,3 USB Port,SD/TF, PD Port Compatible for Dell XPS 13/15, Lenovo Yoga,etc