By default, Maya saves your files to a Projects folder.
When you first start Maya, a default project is created in the following location:
C:\Users\yourUsername\Documents\maya\projects\default (Windows)
/home/yourUsername/maya/project/default (Linux)
/Users/yourUsername/Documents/maya/projects/default (macOS)
You can also find your current project location by selecting File > Project Window.
Projects are a way to keep track of the files related to a scene by storing them in one location, and is used because scenes can depend upon multiple resources from different locations. See Organize Files into Projects for more information. The Project Window tells you the folder that each type of resource will be saved to.
Your files will be saved to this default project unless you do either of the following:
Set a different project. To do this, see Set a Project in Maya.
Select a different default location for your project.
To select a different default location for your project
Next time you create a new project by selecting File > Project Window and clicking New, the project will be created in the location you specified.
You can also set a directory so that Maya starts with this project each time.