It's easy to believe that centrists, by virtue of their own self-declared beliefs, are less biased than partisans. They're not. They're just prone to a different type of bias.
It may even be a WORSE bias!
If a conservative labels something socialist, put your critical thinking skills on alert. Likewise if a leftist labels something racist.
When do you put your guard up with a centrist?
And ditto for centrists! You don't get to dodge human psychology just by refusing to self-ID as a partisan. Bias doesn't work that way, my dudes.
Like any biases, this sometimes leads to truth. There are excellent "F both sides" guys who are right more often than not, eg @notwokieleaks & @neontaster
So what's better to identify as? Partisan or centrist?
Paradoxically, that's a good thing! If you want to keep your empirical skills sharp, you want MORE scrutiny and MORE distrust, not less.
Much harder for self-identifying centrists to do.