: You can set the number of videos per row (up to 10), restore the old logo, and even bring back the green/red like and dislike bars.
If you are on a computer and just want the "classic" look back, browser extensions are your best tool. They modify the existing site to look and feel like previous versions without requiring a true downgrade. how to get old version of youtube
Getting an old version of YouTube on a smartphone is a different beast. While Android is flexible, Google puts strict security measures in place to prevent users from running outdated apps. : You can set the number of videos