Youtube announced to reduce the default video quality from 720p to 480p from the next month. As most of the people are staying home due to the global pandemic covid-19, the bandwidth usage is off the chart.
To tackle with this, youtube is going to cutoff the unnecessary bandwidth strain and network stress caused by default video quality. But can manually change back to the HD ko 4k quality if you want.
Similar to youtube and google, “in order to preserve internet access to entire community”, facebook, sony, amazon, apple and Netflix shal also take extra precaution.