The 3GP format was designed by the Third Generation Partnership Project (3GPP). While it was revolutionary for 3G mobile networks, it suffered from:

While many 3GP sites are download-only, a modern feature would be a dedicated web player. What Are 3GP Files? - Adobe

A modern lifestyle values efficiency, continuous learning, and mindful entertainment choices. Holistic Wellness

The primary target audience for www.six.video.com seems to be:

The search for "www six video 3gp com new" represents a legacy of the mobile revolution—a time when connectivity was limited and compression was key. While high-definition, high-speed streaming is now the standard, the 3GP format paved the way for the video-centric mobile web we enjoy today. The focus has shifted from finding a new "3GP" video to accessing instant, high-quality content via modern, fast, and adaptive platforms. Share public link

It primarily uses MPEG-4 Part 2 or H.263 video compression.

Moving away from aggressive, flashy content, viewers are leaning into "cozy" and "aesthetic" content, emphasizing relaxation and personal spaces.