The default c++ files wont show up in editor as they are base files that describe the build and main game module. They are hidden from the editor.
Do not take them as an example why you are not seeing files (they will never show up)
Make sure when creating a new c++ file in editor that it lands in your source folder and not for example to the intermediate folder (vs sometimes does this).
Create a new c++ file in editor and show what the solution explorer looks like after generating it. The new cpp a header file should be in your games source folder.
If they are not there then either you are saving them in a different place or you are missing write permissions for the files. (Try running vs in administrator mode)
Also make sure you are using vs 2022