Shapechange is a 9th level spell that allows you to transform into another creature, while retaining the benefit of any features from your class, race, or other source, provided that your new form is physically capable of using them. This seems to mean that feats can generally be carried over with that spell.
What I'm wondering is whether your creature type (your race) is itself considered a feature/benefit from your race, for the purpose of other things that only work when you are of a certain creature type, like racial feats. In other words, whether you are still considered of your initial creature type on top of your new creature type.
For example, if a Human Druid with the Prodigy feat (requirement: human, half-orc, or half-elf) Shapechanges into an Giant, do they still retain the benefit of their racial feat ? In other words, is being a human a human benefit/feature ?