I suspect that this is a feature, or at least a partner-related market decision, rather than a bug, and I suspect the most you’ll be able to say is “the weather is nice today” or “thank you for sharing this”, buuuut…

DisplayPort 1.2 Multi-Stream Transport: https://discussions.apple.com/thread/253432530?sortBy=rank

With a full implementation of DisplayPort 1.2 MST it should be possible to output to two independent (non-mirrored) monitors over a single USB-C port. This can be via an MST hub/dongle or using monitors that support DisplayPort MST daisy chaining. This is a core part of the spec to the point that my Steam Deck supports this.

macOS, however, will treat MST displays as targets for mirroring instead of separate displays. The only way to have an elegant “one wire” experience with a MacBook is to use a much more expensive Thunderbolt dock or a dock that uses a DisplayLink chipset which requires a driver to be installed (as DisplayLink are a company unrelated to DisplayPort).

It’s worth noting that macOS does support MST in the form of two video streams for one very high-resolution monitor, which is kind of interesting.

I’d love it if we could use MST docks/hubs/splitters with macOS rather than either needing expensive third-party peripherals or plugging multiple wires into our MacBooks. Especially because most office setups I’ve seen recently use MST hubs if they offer dual monitors!

Thanks for reading this far, and more importantly thank you for soliciting feedback in this forum and manner. Best of luck!

That looks pretty cool indeed! 🤩 Very nice!

I hope that you eventually build Linux and Mac clients, as personally my Steam Deck has replaced my Windows gaming PC and I’m not convinced that I’ll ever go back to Windows at this point.