If Docker can run on Raspberry Pi's ARM chips, it can run on Mac ARM chips. I expect we'll see this working very soon after the new Macs start to arrive.
but you cant run x86 containers... https://blog.alexellis.io/5-things-docker-rpi/
sudo apt install qemu-user-static
# or
docker run --rm --privileged aptman/qus -s -- -p # (every reboot)
away and you can. It'll be slow, but it'll work.