Error: netavark: create bridge: Netlink error: Operation not supported

Can't run minimal rootless container:
```console
$ podman-compose --verbose run --rm
NFO:podman_compose:['podman', '--version', '']
INFO:podman_compose:using podman version: 5.8.1
INFO:podman_compose:podman pod exists pod_devcontainer
INFO:podman_compose:exit code: 0
INFO:podman_compose:['podman', 'inspect', '-t', 'image', '-f', '{{.Id}}', 'devcontainer_omim']
INFO:podman_compose:['podman', 'network', 'exists', 'devcontainer_default']
INFO:podman_compose:podman run --name=devcontainer_omim_tmp64863 --rm -i --pod=pod_devcontainer --label io.podman.compose.config-hash=b3b2cf7bc8186b42f0d5f32e88280bfa94b8506c2802dd076e3e1043ab9c4b53 --label io.podman.compose.project=devcontainer --label io.podman.compose.version=1.5.0 --label PODMAN_SYSTEMD_UNIT=podman-compose@devcontainer.service --label com.docker.compose.project=devcontainer --label com.docker.compose.project.working_dir=/var/home/bam/work/omim/.devcontainer --label com.docker.compose.project.config_files=compose.yaml --label com.docker.compose.container-number=1 --label io.podman.compose.service=omim --label com.docker.compose.service=omim --network=devcontainer_default:alias=omim --tty devcontainer_omim
Error: netavark: create bridge: Netlink error: Operation not supported (os error 95)
INFO:podman_compose:exit code: 126

Start by reproducing the minimal rootless container command `podman-compose --verbose run --rm ` and review the logged Podman invocation and netavark error. Determine whether the failure is in podman-compose or the Podman/netavark environment; done means the cause is identified and the minimal service can run, or the issue is narrowed to an external setup problem.

Written by the indexing model from the issue text.