Funny story: My new-ish Dell laptop (Inspiron 15 7559 i7 with 4k touchscreen display; which I got at an absurdly low sales price from the Dell outlet store) does not reliably recover from sleep under Windows, but does under Linux (neither worked when I first got the laptop, but now only Windows fails and now only some of the time). That's a first, for me, as I have had a huge variety of sleep related bugs in Linux over the years, but fewer under Windows.
Google Hangouts works fine under Chrome on Linux, but is quirkier under Firefox (I don't think I ever got the voice/video plugin working under Firefox, but I rarely use the video features these days, so I just run Chrome when I need it). Both video and audio Hangouts work fine under Chrome.
With very new hardware, you probably need a very new Linux distribution, and newer hardware can have installation quirks. Getting Linux onto my box took a lot of fiddling, but it now runs Fedora 24 quite nicely.