Cleanout access or toilet removal for a reliable sewer camera inspection?

I’m trying to understand when a sewer camera inspection through an existing cleanout gives enough information, versus when removing a toilet is justified.

The layout is a toilet connected to a short branch, then a bend into the main building drain. There’s an accessible cleanout downstream of that connection. From the cleanout, the camera should cover the main line toward the street, but the branch connection, the bend, and the pipe back toward the toilet may be difficult or impossible to see. If the suspected blockage or defect is near that bend, a cleanout inspection could show an obstruction without clearly showing its exact location or cause.

Toilet removal would provide a more direct route into the branch, but it adds access time and means the seal has to be restored properly afterward. It also might still leave sections of the main line unseen, depending on the camera’s direction and how the connections are arranged.

For maintenance or troubleshooting, how do you decide whether the cleanout view is sufficient? Is reaching the suspected blockage, bend, or branch connection the main threshold for removing the toilet, or are there other signs that the cleanout route is producing an incomplete or misleading inspection?