Hello,
Yes, CADUAL4KDOCK can be used with MacBooks with an M1 chip without any problem.
But please make sure that the DisplayLink app is installed.
Please note that this version does not support PowerDelivery (Charging over USB-C) - it uses an older USB 3.0 chipset. We have a very similar version CADUA4KDOCKPDL, that does support this feature.
Best regards
i-tec Team