No, Twitter changed its algorithms leading up to the election. That was not self selection. They were actively pushing right wing bullshit down everyone’s throats because the owner spent $200 million trying to get the dipshit elected.

Which is no different from any of the US social media companies tweaking their algorithms against criticism of all number of political things.

Twitter blatantly forced right wing radical propaganda down their entire user bases through a for months. Facebook was selling user data to foreign influence groups to assist with political message targeting. They’re all the same.

Except all the social media are doing the exact same thing. This is pointless political posturing