So, watching WandaVision it becomes very clear that the show takes place before Spider-Man: Far from Home. I'm trying to piece together something of a timeline.

So, in episode 4, we flash back to the beginning of the West View Anomoly, and the head of SWORD states that it's been 3 weeks since the end of the Blip. WandaVision. Later, after the show's been going on for some time, he says it's only been 9 days since Wanda broke into SWORD and stole Vision's body, which apparently was the same day the anomaly started. So it's been just over a month since the reversal of the blip, 3 weeks or so since Tony's funeral.

I assume the Halloween episode happens because it's actually Halloween, so I assume the reversal of the Blip happened in late September 2023.

Spider-Man: Far from Home happens some time later, possibly in 2024. Anyone have any other details.