Newish to the series, discovered DOS2 but struggled getting into 1. Can someone give me a big lore dump for Divinity as a series?

Pretty much title, I remember seeing people complained a but about Bracchus Rex being back in some dos2 comments. So now I'm curious about the big overview of this world. I know it's full of retcons like any long series. But I'd love an overview of the timeline and major events. If anyone wants to answer or direct me to a YouTube channel or something I would appreciate it.

Thanks, someone that played dos2 extensively but has zero context for the rest of the series