Help to identify grass

Not sure if this is the space for this question, but can y’all help me identify what kind of grass I have? I recently cut the grass, so apologies if that makes it harder, but I think 1 and 2 are the same and 3 is different. 1 and 2 are from different small patches where it grew around 8-12” before I got around to cutting it. It seems fragile to foot traffic as it’s really soft and doesn’t spring back when stepped on. 3 is the majority of my yard and it’s been a lot shorter comparatively. And is a bit tougher. I’m trying to identify the grass so I can better care for it. I’m in Austin :)