### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/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

12.0.5

### What operating system are you using?

macOS

### Operating System Version

11.2.3

### What arch are you using?

arm64 (including Apple Silicon)

### Last Known Working Electron version

_No response_

### Expected Behavior

`document.hasFocus()` is only `true` for the window that has focus.

### Actual Behavior

Ever window reports `document.hasFocus()` to be `true` right after opening.

### Testcase Gist URL

https://gist.github.com/16e6fc829febd0cab115dfd0850a31be

### Additional Information

_No response_
shell/browser/api/electron_api_web_contents.cc
#if defined(OS_WIN)
  
  
  base::ThreadRestrictions::ScopedAllowIO allow_io;
#endif
  scoped_refptr<printing::PrintBackend> print_backend =
      printing::PrintBackend::CreateInstance(
          g_browser_process->GetApplicationLocale());
  std::string printer_name = print_backend->GetDefaultPrinterName();
  
  
  
  if (printer_name.empty()) {
    printing::PrinterList printers;
    print_backend->EnumeratePrinters(&printers);
    if (!printers.empty())
      printer_name = printers.front().printer_name;
  }
  return base::UTF8ToUTF16(printer_name);
}
scoped_refptr<base::TaskRunner> CreatePrinterHandlerTaskRunner() {