Is there a difference between floor general admission and general admission?

For some shows, GA means general admission seats on the floor.

Like the 9:30 most os general admission. There are some reserved seats but mostly ga. The ga isn't divided by level or area as far as I know. But some high end shows could separate the floor and other standing areas. The capacity can vary between about 3,000 and 6,000 depending on the performers.

The genius in this venue is that they are three levels with balcony wings with reserved seats and open General Admission (GA) floor.