Oh, it's because of qemu it seems :

bash-5.1# ps faux

faux: applet not found

bash-5.1# ps

PID USER TIME COMMAND

1 root 0:00 {bash} /usr/bin/qemu-x86_64 /bin/bash

12 root 0:00 /bin/ps

Any issue or I just cannot use Rancher Desktop with Apple Silicon ?