> Should the algorithm only show you left-leaning political posts because that's what you like, or should it optimize for you engaging with a broader variety of content but maybe increase your dissatisfaction.

They should give that control to the user. Users should have the ability to select how much diversity they want and then provide feedback later to the content for the AIs to iteratively understand better, just like in Google news, Youtube. In addition to that, a report analysing the user's engagement with content and topics, for the user to reflect upon.