I can verify that my Plex sqlitedb has not had an issue ever since I moved it to my SSD cache drive and off of my spinning disks in the main array. I did this before I even knew about this thread / posts on Reddit about this issue. I rebuilt and rebuilt, but every day or two the database would become malformed. It's been up and stable for weeks now.
Shame, I lost a lot of user data, and since the backups were stored on the spinning disks they, too, were toast. My fault, I should have kept better backups, but it is what it is.