At the end of my contract with verizon, im jumping ship to Google fi. Ive done extensive reaserch on the web, and found no real negatives. Especially, where I live and work in areas that all 3 fi carriers are strong. My question now is about nexus phones. Im a longtime galaxy owner with an S7 edge. I know I'll be diwngrading a bit. My question is, will I be able to use all my apps that I git ftom google play store? Exactly what is straight android?