What system gives you this? You have a current version of fdisk that understands GPT? You have a system which reads ext4?
Yea, that’s still stored internally, not on the drive. If you’ve swapped drives and not reset your tablo, you’ll likely have that until nightly maintenance mode, or you put the original drive back or reset your tablo.
Streaming is don’t on local network, internet speed matters for remote connect and maybe for uploading commercial skip.