Exactly.Short answer: No
Long answer: The first version of Xbox One controller has it's own proprietary wireless protocol not supported by Switch.
The second revision actually supports bluetooth, so I'm guessing there could be a possibility, but will anyone go through the trouble or writing a driver and a wrapper, is another story.
THIS! I got the 8bitdo adapter off AliExpress for $13. Updated to latest firmware from official website, and it works great with my DS4 and XB1 controllers. Totally worth the investment.I bougth a USB adapter 8Bitdo and Xbox One/ PS4 controller worked just fine, WiiU pro controller and classic controller work too.