Suppose Avengers: Endgame is a 2019 superhero film based on the Marvel Comics superhero team the Avengers, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures. It is the direct sequel to Avengers: Infinity War (2018) and serves as the 22nd film in the Marvel Cinematic Universe (MCU).
Can we infer that "Avengers: Endgame was the first film in the Marvel Cinematic Universe."? Yes, no, or maybe?