This anthology, or at least some of it, will be adapted into the new cannon, maybe in the form of stories in a potential third From a Certain Point of View book
One of the Weequay's from "The Great God Quay" was among Tessek's weequay accomplices
Phlegmin wasn't the kitchen boy trying to poison boy trying to poison Jabba over his brotherBib's chapter implies that there is a much bigger kitchen staff and that plenty of them have grudges against Jabba.
Barada betrayed Tessek and his conspiracyHe displays no signs od disloyalty towards Jabba or discontent with his job during his one POV section. And Jabba did know about Tessek's scheming somehow. Maybe Barada was the one who told him.