The Nintendo Switch won't include any video apps upon its 3rd March launch.
The storied Kyoto-based company confirmed this information in a statement to Kotaku. "All of our efforts have gone toward making the Nintendo Switch system an amazing dedicated video game platform, so it will not support any video-streaming services at launch," Nintendo said. "However, support for video-streaming services is being considered for a future update."
http://www.eurogamer.net/articles/2017-01-20-nintendo-switch-wont-have-any-video-apps-at-launch
http://kotaku.com/nintendo-answers-and-avoids-our-switch-questions-1791402953