In 2019 Quillette claimed to have hard data that "Twitter Treats Conservatives More Harshly Than Liberals".[1]
Their data includes upstanding examples of Conservatism such as The American Nazi Party. I kid you not. There's a bunch of accounts in their set where you can have a reasonable discussion about where the limits should be, but tons of them are literal actual self-described Nazis. There's an overview at e.g. [2].
So yes, colour me sceptical on these types of claims.
