I honestly wouldn’t bother with the official Dock. I’m sure it’s a good product but it’s a bit pricey and doesn’t offer much over third-party ones.
What I would be careful of is potential malware in the cheap Chinese docks. I plugged one into a packet sniffer and it was attempting to poll my network and connect to weird IP’s (and that traffic was NOT from the Deck as it wasn’t connected). These things could be more than just dumb hubs internally.