It can be if you set it up for it, and pay for a Plex Pass. And it would be encrypted and password protected. Randoms wouldn’t be able to access it unless you gave them your login.
Plex content resides on your PC. You’re not uploading it anywhere. I use Plex for old TV shows. Hosted on my laptop, it streams over Wifi to my Firestick.
I would have to look at them to know they are staring
I’ll always remember Amy Pond.