Qualcomm doesn't release open source drivers for Adreno graphics, so there's that at least. There's a reverse engineering project "freedreno" but I doubt they use that (I don't think it even supports all features).
In the ARM SoC space that's quite common (blobs at least for 3D graphics).
In the ARM SoC space that's quite common (blobs at least for 3D graphics).
I don't know if there's something else.