Just about every video has some kind of graphical or animation requirement.
However, a good rule of thumb is to not get carried away with animation.
The reason for that is because they are supposed to help illustrate key points of information or simply add to presentation finesse. And not to dazzle the viewer with artistic talent.
With that said… there is no single answer, and your project will need to be treated individually.
The important thing is to not worry.
As previously mentioned… we listen carefully, and then ask the right questions to get a clear picture of what needs to be achieved.
From there we will be able to give you sensible and grounded advice, with examples.