It doesn't work on Macbooks. References to macbooks supporting MST are about certain early high res monitors that behaved internally as multiple monitors due to

It doesn't work on Macbooks. References to macbooks supporting MST are about certain early high res monitors that behaved internally as multiple monitors due to bandwidth limitations on Displayport 1.2. That's fixed with higher bandwidth newer DP and HDMI revisions so the MST feature people care about these days is monitor chaining, and that is still not supported even in M2 Macbook Pros