voltage

Do the staterooms have United states compatible outlets for charging laptops and walkie talkies? I couldn't find any information on the website

Yes - Try here for more details: https://ask.cunard.com/help/cunard/fleet/Voltage_onboard

When they convert to the large flatscreen TV mounted on the wall, does that result in additional unused US outlet available on the wall over the fridge (with the TV over the fridge there's a duplex outlet behind the TV with one unused receptacle) or do they remove those outlets as part of the conversion?