This! but YMMV, here's my journey so far... Using Ubuntu on a 2016 MBP Retina 15" 1. First 14.x: mostly functional, trackpad was buggy. Brightness wont work.

This! but YMMV, here's my journey so far... Using Ubuntu on a 2016 MBP Retina 15" 1. First 14.x: mostly functional, trackpad was buggy. Brightness wont work. No Bluetooth. Blame on kernel 3.x 2. Then 15.x: almost functional! mostly everything worked great wth kernel 4.x, but no bluetooth nor camera. That's ok, I can live without that 3. Now 16.10: almost perfect. Bluetooth works again. Still no camera, but I have trust it will soonish :) Also the machine never shutdown nor suspend correctly. I need to restart the machine, press ESC, write "exit" at grub, and then pick "poweroff" form the UEFI menu. But even with all this drawbacks, I don't regret and full recommend to try this setup. This is the best hardware/software combo. And even the battery last more than 12 hours with linux!