Steamdeck and a switch are two different things. The Steamdeck is a computer and any dock (as long as it has no design flaws) works seamlessly with it. You only need to look out what kinda output for videos you want. As I have seems docks (or hubs) which can only output 4K/30Hz.

And for reference. I use the ivoler 6-in-1 Dock. Normally it is half the price of the official dock. And nice bonus. The deck fits with a case on it.