"unbiased content"
You've also been posting unsubstantive and/or flamebait and/or snarky comments too. That's also against the site guidelines, so if you'd please stop that as well, we'd appreciate it.
They can be directly or indirectly intimidated if the trial is high profile enough and if their identities are leaked.
With Chauvin's trial, the jury was indirectly intimidated by the public demands for a guilty verdict from politicians like Maxine Waters and other public figures.
In the Rittenhouse trial the judge caught someone in the courtroom surreptitiously filming the jury presumably to leak their identities. It's definitely possible to get a biased court.