Where did you get that Data? I don't even heard of the 5th - 7th in the list lol.
And also Skype and Discord did not mentioned above?
Maybe that's from your local data .
Can't you google it yourself ? I'm not sure how didn't you heard about Insta and TikTok!!
Instagram rapidly gained popularity, with one million registered users in two months, 10 million in a year, and 1 billion as of June 2018.[10] The Android version was released in April 2012, followed by a feature-limited desktop interface in November 2012, a Fire OS app in June 2014, and an app for Windows 10 in October 2016. As of October 2015, over 40 billion photos had been uploaded.
As of October 2020, TikTok surpassed over 2 billion mobile downloads worldwide.