$ cat /etc/docker/daemon.json
{
 "runtimes": {
   "oci": {
     "path": "/usr/sbin/runc"
   },
   "runsc": {
     "path": "/usr/local/bin/runsc",
       "runtimeArgs": [
         "--platform=ptrace",
         "--strace"
       ]
   }
 }
}
$ uname -r
5.8.16-300.fc33.x86_64
$ docker run -ti --runtime runsc busybox sh
/ #
/ # uname -r
4.4.0