This is used with the hardware transcode setup.
Correct, though whether it’s a dataset or a directory is up to the user.
It’s used temporarily for files that need to be copied into the jail–pkg.conf
and the package update script.
Yes. The “normal” package provides the PlexPass features if you’re signed in to a PlexPass account, and doesn’t if you aren’t. The “Plexpass” package now acts as a beta. It gives early access to some new features (at least at times), but isn’t as stable.