Environment:
- QEMU VM with 2 vCPU's & 1536M RAM
- openSUSE Tumbleweed 20230119

To reproduce:

# podman container create --name testing registry.opensuse.org/opensuse/leap
/bin/sh -c 'sleep 3600'

# podman container start testing

# podman container inspect -f '{{.HostConfig.BlkioWeight}}' testing
0

# podman update --blkio-weight 10 testing

# podman container inspect -f '{{.HostConfig.BlkioWeight}}' testing
0

The same happens with other options like --cpu-shares & --memory-swap.

# podman info
host:
  arch: amd64
  buildahVersion: 1.28.0
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - rdma
  - misc
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.5-2.1.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.5, commit: unknown'
  cpuUtilization:
    idlePercent: 99.77
    systemPercent: 0.1
    userPercent: 0.13
  cpus: 2
  distribution:
    distribution: '"opensuse-tumbleweed"'
    version: "20230119"
  eventLogger: journald
  hostname: susetest
  idMappings:
    gidmap: null
    uidmap: null
  kernel: 6.1.7-1-default
  linkmode: dynamic
  logDriver: journald
  memFree: 534142976
  memTotal: 1542692864
  networkBackend: cni
  ociRuntime:
    name: runc
    package: runc-1.1.4-2.1.x86_64
    path: /usr/bin/runc
    version: |-
      runc version 1.1.4
      commit: v1.1.4-0-ga916309fff0f
      spec: 1.0.2-dev
      go: go1.18.6
      libseccomp: 2.5.4
  os: linux
  remoteSocket:
    path: /run/podman/podman.sock
  security:
    apparmorEnabled: true
    capabilities:
CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: false
    seccompEnabled: true
    seccompProfilePath: /etc/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.2.0-1.1.x86_64
    version: |-
      slirp4netns version 1.2.0
      commit: unknown
      libslirp: 4.7.0
      SLIRP_CONFIG_VERSION_MAX: 5
      libseccomp: 2.5.4
  swapFree: 2148233216
  swapTotal: 2148507648
  uptime: 2h 11m 1.00s (Approximately 0.08 days)
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - registry.opensuse.org
  - docker.io
store:
  configFile: /etc/containers/storage.conf
  containerStore:
    number: 1
    paused: 0
    running: 1
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.mountopt: nodev,metacopy=on
  graphRoot: /var/lib/containers/storage
  graphRootAllocated: 30054285312
  graphRootUsed: 2665611264
  graphStatus:
    Backing Filesystem: btrfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Using metacopy: "true"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 1
  runRoot: /run/containers/storage
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 4.3.1
  Built: 1673913600
  BuiltTime: Mon Jan 16 19:00:00 2023
  GitCommit: ""
  GoVersion: go1.17.13
  Os: linux
  OsArch: linux/amd64
  Version: 4.3.1