### Preflight Checklist
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* [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 for an issue that matches the one I want to file, without success.
*I found one but it's been closed since 2017 athough updates are still happening on it either close this issue and reopen that or make this the new issue #9092* 

### Issue Details

* **Electron Version:**
  * v10.1.1
* **Operating System:**
  * Windows 10 18363
* **Last Known Working Electron version:**
  * unknown

### Expected Behavior
calling `isMaximized()` to respond if the window is maximized 

### Actual Behavior
`isMaximized()` always returns false when transparent is set to true on BrowserWindow

### To Reproduce
https://gist.github.com/293ffab750b019714f12d8e1f203e611


### Additional Information
#9092 is a closed issue with people still reporting this problems but since it's closed I don't think admins are looking hence creating this issue.

shell/browser/native_window_views.cc
#elif defined(OS_WIN)
#include "base/win/win_util.h"
#include "shell/browser/ui/views/win_frame_view.h"
#include "shell/browser/ui/win/electron_desktop_native_widget_aura.h"
#include "skia/ext/skia_utils_win.h"
#include "ui/base/win/shell.h"
#include "ui/display/screen.h"
#include "ui/display/win/screen_win.h"
#include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
#endif
namespace electron {
namespace {
#if defined(OS_WIN)
const LPCWSTR kUniqueTaskBarClassName = L"Shell_TrayWnd";
void FlipWindowStyle(HWND handle, bool on, DWORD flag) {
  DWORD style = ::GetWindowLong(handle, GWL_STYLE);
  if (on)
    style |= flag;
  else
    style &= ~flag;
  ::SetWindowLong(handle, GWL_STYLE, style);
}
gfx::Rect ScreenToDIPRect(HWND hwnd, const gfx::Rect& pixel_bounds) {
  float scale_factor = display::win::ScreenWin::GetScaleFactorForHWND(hwnd);
  gfx::Rect dip_rect = ScaleToRoundedRect(pixel_bounds, 1.0f / scale_factor);
  dip_rect.set_origin(
      display::win::ScreenWin::ScreenToDIPRect(hwnd, pixel_bounds).origin());
  return dip_rect;
}
gfx::Rect DIPToScreenRect(HWND hwnd, const gfx::Rect& pixel_bounds) {