This is the main barometer that I use to see if I live in an echo chamber or not and orient myself in the world. The people I listen to (Rogan, Peterson, Weinsteins, Rubin, and to a lesser extent Shapiro and Harris) tend not to speak authoritatively except in narrow circumstances and their opponents (and people I disagree with) tend to speak as if their opinions are self-evidently correct and disagreement is out of the question.
Unrelatedly, another tool is to examine my mentors' critic's arguments. It is very telling that Jordan Peterson is equally accused of being far left and far right.