Did you notice this in Pixar movies?

how does Pixar spoil their next movies in the movie Soul which was released in 2020 you can see a poster with the city of Puerto Roso this is the city where the events of Luca take place which came out in 2021 in Luca you can spot a record titled four villagey which is a reference to the band four town from the movie turning red which was released later in turning red we see a sticker with socks the cat from the movie Lightyear 2022 and in Lightyear there's a vending machine with a bottle featuring wave from Elemental 2023 later in Elemental there's a school poster showing a planet with tentacles referencing the upcoming movie Elio set to release in 2025