I just got one thru AT&T. LG rep happened to be there when I showed up and helped get screen protectors for it for free. They showed up at my house the next day!
Anyone else experience this on their phone? LG V40 or not. My notification sounds were a lot louder on Oreo. Even noticed this on my wife's phone too(same phone). I did everything including a factory reset, and still notification and ring tones are a lot lower in volume now.