I am using a mac M1 (arm64), so I didn't need binfmt-support/qemu-user-static installed.
docker run --platform="linux/arm64/v8" -it --rm -v $(pwd):/workdir -w /workdir ubuntu:eoan bash
cat << EOF > /etc/apt/sources.list
deb http://old-releases.ubuntu.com/ubuntu eoan main universe
deb http://old-releases.ubuntu.com/ubuntu eoan-updates main universe