The other films that Marvel has in the pipeline are Black Widow, The Eternals, Shang-Chi, Black Panther 2, Doctor Strange 2, and the inevitable but still unannounced Captain Marvel 2.
As of now, Marvel doesn’t have any films slated to release in 2023.
A movie like Guardians 3 will likely need that prime May real estate, so we will have to wait and see how Marvel’s schedule shakes out.
It has three films slated for 2022, but it’s unclear which of its in-development projects will be attached to the dates.