This should only be set on the side of the labels, not both.
My use case was a FAB menu at the bottom right, using a 16dp right/end margin. I have actual FAB (from the official support lib) that have the same margin. They aren't placed at the same position, and the FAB menu is shifted 8dp to the left.
When using the FAB menu, there is an additional margin due to the labels margin.
This should only be set on the side of the labels, not both.
My use case was a FAB menu at the bottom right, using a 16dp right/end margin. I have actual FAB (from the official support lib) that have the same margin. They aren't placed at the same position, and the FAB menu is shifted 8dp to the left.