Phase Four always felt small and hollow to me without the next instalments for Captain Marvel, Black Panther, Ant-Man and Wasp, and the Guardians of the Galaxy, and only lasting 2 years.
So I do hope they just blanket declare 2022 a Phase Four year, meaning we have the next instalments for most main characters (I'm not talking about just cameos in other things like the Guardians in Love and Thunder), and Phase Four is 3 years. And hey, maybe Guardians Vol. 3 could still go for late 2022, given James Gunn was planning to start filming late 2020/early 2021, or Ant-Man 3 could go for late 2022 given it was going to film mid-2021.
With the next instalments of almost every character and a little more length to it, then Phase Four feels more like a "next chapter" to me than how it previously felt, just like an in between bunch of "stuff".