Complex sentence: Joy-Con L contains directional buttons, a button, top buttons designated as and, and a screenshot button and later as a future update, it will capture videos to your gameplay and it will be uploaded through social media.
Split into simpler sentences: Joy-Con L contains directional buttons, a button, top buttons designated as and, and a screenshot button. In a future update, it will be able to capture videos, which may then be uploaded through social media.