Short answers, pulled from the story.
Sony Pictures revealed plans to use The Amazing Spider-Man 2 as a launchpad for an expanded universe in December 2013. Producers Avi Arad and Matt Tolmach discussed how these worlds might coexist with the Marvel Cinematic Universe following The Avengers in 2012.
Venom: Let There Be Carnage followed on the 1st of October 2021. Andy Serkis directed after Ruben Fleischer left for Zombieland Double Tap, and filming occurred in England from November 2019 to February 2020.
Sony confirmed in August 2018 that they held rights to 900 Marvel Comics characters including villains, heroes, antiheroes, and female characters who are fully dimensionalized. The studio decided against making Venom act as a common thread throughout the universe even though it would have key points of intersection with other films.
Madame Web and Kraven the Hunter performed poorly at the box office in 2024. Reports indicated Sony stopped developing further films to focus on Spider-Man: Brand New Day set for 2026.
Amazon chose not to move forward with Silk Spider Society by May 2024 instead greenlighting the Spider-Man Noir series titled Spider-Noir with Nicolas Cage reprising his role from Into the Spider-Verse. Filming took place in Los Angeles from August 2024 to March 2025 for eight episodes set to debut on MGM+ domestically before international release on Amazon Prime Video.