For example, if a channel is about animals, then everything on that channel should be about animals, so it provides a cohesive viewing experience.

Don't forget to target an international audience.

Use SSSTIK

Use the following Canva template to combine the videos.

Note: Regarding the video audio, since there are two videos on one slide, one of them must be muted.

The video length shouldn't be more than 3 minutes.