My current and last laptop was a Thinkpad T15G gen2 (circa 2021), and even with their triple display dock it could never do triple 4k/60 out of it using linux in any stable fashion, so I really don't know how StarTech is accomplishing this. There's simply not enough bandwidth for 3x displays at 4k/60 let alone 4x, not to mention all the other usb things attaching to the dock. Others do it using the horrible DisplayLink conversion chips that have only ever provided wonky drivers for any platform, worst off of all Linux, where I won't even consider these as a Linux user, but even Windows/Mac tend to be trash.

I don't see DisplayLink listed in their chips on this dock, but I have to wonder if they're using some other chip now, hoping for less suck than for DisplayLink, but would likely require drivers, and thus DOA for Linux (and thus not mentioned in OS support).

The biggest problem with this or most any dock is they can't support DP passive adapters (stated in StarTech docs), which kills most use-cases for using larger format displays as I do (3x 50" curved LCD's). They only have HDMI input, and end up having to use 3x powered adapters that were another ~$100 each, individual power bricks, extra cables, extra mess.

All these docks end up impractical for real world usage sadly. I wish someone might one day consider the possible use cases vs. creating some random crap-gadget that really doesn't work for anyone but the most rare and optimal use cases.