iMessage and FaceTime on too many devices
I just got a new MacBook Pro 13", and because I was sharing my Apple ID (without the family sharing) I'm getting my family members personal text messages. Is there a way to uncheck them for where I'm "reachable at" without restricting their use of the Apple ID? For some reason my laptop isn't allowing me to do this, when I used to be able to before. Thanks in advance.
MacBook Pro 13″, macOS 11.4