This.
In a ideal scenario, we would have had a " street level" Spiderman 4 in 2023 or 2024 at the latest .
Then , by the next Avengers film , we would already have seen Peter's new friends, and new reality, before the next crossover film.
Now, when we first see the character again , he's gonna have to share screen time with a several other characters including Downey Doom.
So , we're going to have to wait until his own film , for the story to truly focus on him, as the central figure.
I know Spiderman / Peter Parker , is supposed to play an important role in the next Avengers film , but his screen time is still going to be limited in the context of Downey Doom, other variants,
current heroes, multiverse shenanigans, etc.
At the end of the day, when we see Spiderman again, it's gonna be in an Avengers film , not a solo film.