The first chapter is shortly after Endgame. Then a time skip to events between/after Ep. 1.06 of TFAWS.
Or where Sam and Bucky get together after Tony's funeral but Bucky runs away before they can talk about it.
"I would kiss you on the boat. Or in Wakanda by your goats."
This is pure crack. The media thinks Bucky and Sam are a couple. Sam is questioning his sexuality and tries to use Dr. Seuss as an analogy and then it becomes a thing. Takes place after TFATWS.