Adding some info. if you run amd64 program and getting "qemu-x86_64-static: Could not open '/lib64/ld-linux-x86-64.so.2': No such file or directory" error, you need add amd64 runtime like below, then you can run amd64 program.

dpkg --add-architecture amd64
apt update
apt install hello:amd64 -y

I must be missing something, I get back a 'WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested' when I try to call the x86 docker "docker run -d -p 7778:7778 -p 7778:7778/udp -p 27015:27015 -p 27015:27015/udp -e SESSIONNAME=myserver -e ADMINPASSWORD="mypasswordadmin" --name ark boerngenschmidt/ark-docker'

You can try some of the other architectures on qus's page though and see if that helps. I think "i386" may be able to work (but I haven't tried).

Hi, you can ignore this warning. Docker is just letting you know that the architecture for the image you downloaded doesn't match up with your host system's but qemu will still emulate it happily. However, I've just tested your image locally, and it looks like your image contains "steamcmd" which appears to be a 32-bit executable (not familiar with running Steam servers sorry), which might not be able to run through qus.