It is "standing together"...it's part of the Sony Pictures Universe of Marvel Characters (And no, I didn't make that up...this is a real
thing). Even though they are lending Spider-Man out to the MCU...Sony still holds the film rights for characters primarily associated with Spider-Man.
By the time this movie is released it will be 4th movie in this Cinematic Universe. They are also working on a TV series featuring Silk ( A female Spider-Man), and a limited Series starring Silver Sable and The Black Cat.