A critical aspect of balancing the triangle is knowing when to switch modes. Work videos are productive. Lifestyle videos are inspiring. Entertainment videos are relaxing. The danger is when entertainment bleeds into work hours. To maintain balance, use the "container method": Dedicate 45 minutes of deep work (no video), followed by 15 minutes of entertainment video as a break. This keeps the brain engaged without burning out.
: Your review might consider how user-friendly the site is, how easy it is to navigate, and the quality of the content. However, these aspects can be subjective.