The M1 can't even support two monitors plugged in directly, which is a joke for a machine this expensive.
That is the case for the M1, which is the lower-end of the new processors – a bit disappointing because I'd've otherwise bought one, but a relatively uncommon scenario overall for a lower-end Mac.
It's not the case for the recently-launched chips, which support up to 2x6k external displays (M1 Pro) or 3x6k + 1x4k (M1 Max).
OT: It’s nice that DisplayLink connections let an M1 machine have unlimited displays, and that the performance of their driver under Big Sur and above has been fantastic for me for the past half year for 2 extra displays. (Four total, 1 is vertical)
Implying Apple's cooling is any better? Both build difficult to repair devices tuned only for looks. Whether it's the Macbook that literally doubles its performance if you build a custom cooler that prevents throttling, or the Surface Book that you can't use at full performance for long because the charger cannot deliver enough power to sustain it.
Nobody can cheat thermodynamics, and attaching "Pro" to the name doesn't make it go faster either. I just hope I can keep buying "normal" laptops. They're ugly and noisy, but at least I know they can be fixed without melting off the keyboard or the repair guy telling me it's water damage when it isn't.
Intel integrated GPUs are often set up to use main memory instead of dedicated GPU memory (as for the Iris graphics). I wonder if that makes a difference, though it is on the same package.