No it didn't. The fake shattering took place just before the Homeworld Gems left. It was the reason the Diamonds did the corruption blast.
As for Pearls form. I've got nothing. I'll think about it.
this battle takes place before the fake shattering at the height of the rebellion (despite how it may seem, this memory is very likely real, as rose is intentionally excluded, if this was simply a representation by garnet she would most likely be there)