How do you make a video like this dude's?

Question

Video processing

To get started, watch any video of this channel: https://www.youtube.com/user/ShinSaikan/featured
I want to make a similar video.
I already have information about the assessment of faces, but I don’t know how to make exactly such a design and design. I think this can be done by creating a long horizontal collage with caption support. How to scroll smoothly, I'll figure it out myself.
The question itself is that I want to know what site or program allows you to make long collages with support for captions . Or did you come up with your own version of this task?