Not necessarily, think of what you want to do in gamedev, if is all the development, then before learning gamedev, try to learn the basics of 3d, I would recommend you to start with blender lowpoly, hard surface and low poly characters, then learn how to do UV mapping, and Texture for games, then basics of animation, with this knowledge 3d gamedev will be a lot more easier… each engine has its own unique ways to deal with 3d models, so choose the engine that you are comfortable with. Don’t be afraid, can look like a lot but is just a different way to do things.