https://astronomy-imaging-camera.com...94mc-pro-color
I’m posting this link again that you clearly didn’t pay attention to.. see the FW(e-) / again graph and this shows that as gain increases full well capacity decreases. Unity gain (117) means a gain of 1e-/ADU and this LITERALLY MEANS full well depth of 16,384 e-.
In fact, those four graphs tell you answer most of your questions. Study them.