During the WWDC 2022 keynote speech, which opened at 1 a.m. Beijing time on June 7 (Tuesday), apple grandly released the MacBook Air and MacBook Pro models with M2 chips However, while being shocked by the hardware performance, Apple also deliberately played down a short board of the M2 MBA / MBP model - the new model still only supports an external display
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Apple wrote in its official technical documents: the new 13 inch macbook The air / MacBook Pro can only drive the laptop's own display + a 6K @ 60Hz external display.
Although it is officially announced that both laptops are equipped with a native resolution display panel with 1billion colors, and both provide lightning 3 and usb-c (DisplayPort) digital video output options.
Even with the optional VGA / HDMI / DVI / lightning 2 adapter, 13 inch m2 MacBook air / M2 MacBook Pro Only one external display can be driven.
For comparison, the MAC studio workstation can connect up to four Pro display XDR monitors via usb-c, plus one 4K monitor via HDMI output (a total of five).
As for whether it is a hardware degradation or a simple software performance (experience) limitation, it still needs further confirmation from apple.