### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/main/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.

### Electron Version

16.0.0-beta.3

### What operating system are you using?

Other Linux

### Operating System Version

Linux pop-os 5.13.0-7614-generic #&#x2060;14\~1631647151\~21.04\~930e87c-Ubuntu

### What arch are you using?

x64

### Last Known Working Electron version

15.3.0

### Expected Behavior

From the documentation for `app.getPath("userData")` (https://www.electronjs.org/docs/latest/api/app#appgetpathname):
> The directory for storing your app's configuration files, which by default it is the appData directory appended with your app's name.

So `app.getPath("userData")` in the linked gist should be `~/.config/test-electron`.

### Actual Behavior

`app.getName()` returns the correct name from package.json but `app.getPath("userData")` returns `~/.config/Electron`.

### Testcase Gist URL

https://gist.github.com/weedz/ad42b854df4e5bc411d18e48ae1c91df

### Additional Information

Found this issue which might be relevant https://github.com/electron/electron/issues/30112.

Same result in the following devcontainer https://gist.github.com/weedz/c962d69078391115635772b279264c02.
shell/browser/electron_browser_client.cc
content::WebContents::FromRenderFrameHost(render_frame_host);
  if (!web_contents)
    return;
  const GURL& site = render_frame_host->GetSiteInstance()->GetSiteURL();
  if (!site.SchemeIs(extensions::kExtensionScheme))
    return;
  content::BrowserContext* browser_context =
      render_frame_host->GetProcess()->GetBrowserContext();
  auto* extension = extensions::ExtensionRegistry::Get(browser_context)
                        ->enabled_extensions()
                        .GetByID(site.host());
  if (!extension)
    return;
  extensions::ExtensionsBrowserClient::Get()
      ->RegisterBrowserInterfaceBindersForFrame(map, render_frame_host,
                                                extension);
#endif
}
#if defined(OS_LINUX)
void ElectronBrowserClient::GetAdditionalMappedFilesForChildProcess(
    const base::CommandLine& command_line,
    int child_process_id,
    content::PosixFileDescriptorInfo* mappings) {
  int crash_signal_fd = GetCrashSignalFD(command_line);
  if (crash_signal_fd >= 0) {
    mappings->Share(kCrashDumpSignal, crash_signal_fd);
  }
}
#endif
std::unique_ptr<content::LoginDelegate>