cucipiring Creating GP Partition is actually is to create a partition from the userarea.
When you create a GP Partition, the size of the userarea will be reduced,
and it will automatically format the partition, so the data will be lost, but it will not affect the rpmb area.
Except in some cases on micron, where there are some findings that making the GP partition can also reset the rpmb.
This doesn't make sense in theory, but this methode works in the real world.