Did Google hide the best version of Gemma 4 e4b in Android? The extracted model beats Unsloth and everything else I've tried.

Why does Gemma 4 e4b from Google AI Edge Gallery on Android weigh only 3.6 gigs, while the one from Unsloth (gemma-4-E4B-it-UD-Q2_K_XL.gguf) weighs 3.7, and for some reason the model image in litertlm format extracted via adb from Google AI Edge Gallery on Android acts smarter than all the versions I've downloaded from the internet and tried, and the one from litert-community/gemma-4-E4B-it-litert-lm turned out to be especially buggy, it writes completely incoherent text in Russian. Does anyone