Seriously?
A relatively cheap adapter gives type-C power passthrough, Ethernet, HDMI, SD and Micro-SD and three USB-A 3.1 ports. That is ONE port taken.
It is widely known that the M1 devices (except Mac mini) only support one monitor.
You could plug a 5K 27" monitor into the other port instead of the HDMI out.
It's a 1.25Kg laptop, what do you expect?