In the early days it was a bit more than that. You had to deal with fiddly software and do things like mapping buttons to video tracks, create transition videos, create chapters etc… It’s been a couple of decades since I last dabbled with this stuff, but I remember that doing it well, and creating something that stood out and worked well, was a bit of an art.
Edit: All/most of those things became easy(ier) as authoring software improved, of course, but in late 90s and early 00s it took practice and skill to achieve a professional result.
In the early days it was a bit more than that. You had to deal with fiddly software and do things like mapping buttons to video tracks, create transition videos, create chapters etc… It’s been a couple of decades since I last dabbled with this stuff, but I remember that doing it well, and creating something that stood out and worked well, was a bit of an art.
Edit: All/most of those things became easy(ier) as authoring software improved, of course, but in late 90s and early 00s it took practice and skill to achieve a professional result.