Opinions differ… It seems to me that
https://www.education-ecosystem.com uses blockchain technology effectively. It was implemented not only to ensure safety, but also to reward people. They get the company’s tokens for their work. This system motivates teachers to create high-quality content.
There were a lot of projects like that even before the emergence of Covid-19, but their quality has improved significantly. This stimulates the developers to create new platforms and implement new technologies.
Yes, LEDU company is one of them. I absolutely love the reward system. Also, the quality of education courses grows contentiously because the reward depends on positive feedback and the number of views.