Window layout style bug on open

[laurelkeys]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.66.0 (x64)
• OS Version: 10.0.19044 Build 19044 (Window 10)

Steps to Reproduce:

1. Launch VS Code
2. Open File > New Window (or use the shortcut Ctrl+Shift+N)
3. For the first miliseconds after opening a new instance of VS Code, a "Window 7"-like window frame layout appears, before the usual VS Code look shows up (see the attached GIF).

The GIF below first shows the expected behavior, opening version 1.65.0, followed by the current behavior of version 1.66.0.

The two executables were downloaded from: https://update.code.visualstudio.com/1.65.0/win32-x64-archive/stable and https://update.code.visualstudio.com/1.66.0/win32-x64-archive/stable.

[deepak1556]

Refs electron/electron#30760

[rokimiftah]

that's the reason I went back to 1.65, frames are so annoying.