The view from below of the boosters after entry burn where you can clearly see they're not just falling straight down but actually achieving some horizontal velocity across the ground was really cool. I've always known that they had some cross-range capability, but this was a really excellent visualization of it!
Scott Manley did a good break down of their landing profile. They maintain a ballistic trajectory set to miss the landing pad / barge and it's only on successful re-ignition of the engine that they align with the landing pad.