Depending on what you are doing and what you wanna run you don't really need it. For most use cases, just `pkg install -j` (-j is for jail) what you want. Or just put the Linux binary (prefereably the musl/alpine one) in a thin jail it usually works.

I haven't tried podman in FreeBSD yet because from what I understand you can only run it as root right now, so it kind of defeat the purpose.