It is important to know that for any project hoping to convince investors into putting their money into the project, they are going to be focused on making the project as appealing as possible which means that the project's whitepaper will surely be good so I believe you should look beyond the projects whitepaper to decide if a project is legit or not.
Always make through research of a project's team, road map and token metrics to decide which projects to invest in
White paper is an important thing in a project because it contains the basis of the construction of the project. In the white paper, of course, it must contain the project's vision and mission, the excellence of the project, the road map and the development team that allows it to attract many investors. But, to decide on a good project or not, just look at the white paper, there are many other things that need to be examined so that you can determine the best decision.