As powerful as tar(1) is …
Readin thetar(1) man page (because you, as I do, sometimes re-read man pages, right?) I found that the BSD version, in particular the FreeBSD version, of tar(1) does support a lot more file layouts.
GNU
tar(1) supports the following compressed formats:
bzip2(1)xz(1)lzip(1)lzma(1)lzop(1)
while the FreeBSD version supports also:zstdlrzip(1)lz4
but here is more than just compression. BSDtar(1)also provides native support foriso9660(disk images) and encryption!
Sincetar(1)is shipped with the base system, seems FreeBSD has access to a lot more archive formats than regular GNU distributions.