After then, I decided that I should put the full-screen video chat function into the program and suggested it to my UX and planning team. They agreed about the requirement and I volunteered to make the function. When the full screen function was released, I notified him about it and he sent me a thank you mail.
It was one of my impressive things among my entire software development life.
We are developing softwares and it is sometimes very successful but sometimes it is not. But beyond the success of our projects, we should know that we are making software to help our neighbors.