That's not the case. Literally everyone who's dealt in inflammatory content (talking about a violent event, say, the recent Ukraine war has been filled with this) has had run-ins with the moderation process at twitter. They issue suspensions for false positives all the time, and everyone thinks it's targetted censorship. It's not.

Where it starts to look biased is that they've drawn two lines in the sand in recent years: 1. No disinformation about a global pandemic, and 2. No using lies about an election to justify violence against the government. And they banned a bunch of people that did that. And yes: it was one side that made those issues "partisan".

I really don't know what you want Twitter to do here. In any other society, those would seem like reasonable rules.