The four biggest videos on this channel all name a specific software tool in the title. They did 63,523, 57,682, 45,687 and 24,165 views.
The two most recent uploads are interviews, titled around who the guest is. They did 114 and 76.
The interviews aren't the problem. This audience arrived for a named tool and something they could go and build afterwards. A guest's name carries no search demand and makes no promise, so the video has to be sold entirely on the thumbnail. Same guest, framed as a specific build, is a different video.