Oct will be here soon enough & then we will know
"As of October 1, 2023, two free logins will be provided per suite or stateroom, each of which can be used on one device at a time. A login is provided for the first two devices per suite or stateroom."
My interpretation is that each cabin gets 2 separates logins
each login in can be used on 1 device at a time
Time will tell if right or not