[richardg_]

Is this an actual hardware issue though? One issue is MacOS has never supported DisplayPort MST (Multi-Stream Transport) EVER as far as I can tell. MST allows for multiple display streams to be natively sent over a single connection for docks or daisy chaining monitors. Back on Intel Mac's if you had a dock with 2 displays or daisy chained 2 together you would get mirrored displays. The exact same Mac/displays in boot camp MST would work perfectly. 1x display per Thunderbolt 4 port is the worst!

[AlphaSite]

You can get multiple displays from a single port, the hubs are just expensive.

[daft_pink]

You can't do it with a base model M chip. Not supported on Mac unless you go with displaylink and displaylink has weird issues on mac like no hdcp support and screen recording enabled that make it a really bad experience compared to mac.