Not every product stands for itself. Good explainer video can help here. Many times, those videos are animated, many times produced with motion graphics. Together with a voice over speaker, the animations present the topic / product in a way that the viewers understand the product better and also in a way that boosts the conversion rate.
Explainer videos are also used for video marketing and onboarding processes and are sometimes difficult to distinguish from classic corporate videos. Good explainers are rare and are often used not only to make customers understand the product better but also for ads. Explainers can be found mostly on YouTube, but also other social media platforms or even the website itself.