Is your home connection down that much? I’d think that even syncing once every day or so would populate everything fine, and if you’re at home it should update over wifi.
I might just be spoiled because I’m the only one using mine and only for a handful of devices.
Was curious before about setting it up on a Samsung TV, apparently can sideload an app or something? Didn’t look too far into it because Plex ‘just worked’. Will have to revisit that.
The second one.
Mirroring is good for speed, but a storage mechanism with parity checks will always be more recoverable. And you will have far more storage available.