If you take some time to do conversations and read shit though, you can learn about most of the stuff quickly. Or you can read up a summary of what happened, can find them in various places, though you want to make sure it's spoiler free(wiki had a summary of DA2 with DA:I spoilers apparently). Thing is the story so far seems pretty much unlinked to most of everything else, and the first 2 simply provide knowledge of the characters(which you'll learn from just playing this too during conversations) and understanding of the state of the world(which you'll see from well, playing the game).
I was playing a bit earlier, there's a fucking goddamn quest marker on my map that doesn't actually have an item for it. It's one of these scrolls shit that drop from a mob, and it didn't spawn or whatever I don't know, I've done the thing on my mage so I know where it is but on my rogue the mob is dead and there's not a fucking thing to loot anywhere close, it's so annoying. This kind of shit annoys me so much.
Wondering though, how prevalent is the whole "activating a rift to weaken mobs" thing later on? I'm feeling like I never saw any use for it since you stand there doing shit for so long before it procs, so wondering if being a tank would actually not be miuch of an issue.