[Bug]: Maximize window visual glitch on Windows

[Adam777Z]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

20.0.1

What operating system are you using?

Windows

Operating System Version

Windows 11

What arch are you using?

x64

Last Known Working Electron version

No response

Expected Behavior

No visual glitch, the whole window showing the background color (default or set using backgroundColor) until the content is loaded.

Actual Behavior

On Windows using the maximize method of BrowserWindow after opening the app's window causes a visual glitch until it loads the content.
This results in a bad user experience.
Tested on Windows 10 & 11 64-bit.
Also tested on Ubuntu 22.04 64-bit, it's good, no visual glitch.
Tried with default window width and height.

Method:
https://www.electronjs.org/docs/latest/api/browser-window#winmaximize

Code:

const win = new BrowserWindow();
win.maximize();

Workaround:
Don't show the window, maximize it, then show it:

const win = new BrowserWindow({show: false});
win.maximize();
win.show();

Or hide the window, then maximize it, then show it:

const win = new BrowserWindow();
win.hide();
win.maximize();
win.show();

Test:
https://github.com/Adam777Z/electron-windows-visual-glitch-test

Testcase Gist URL

No response

Additional Information

No response

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Adam777Z]

This issue still happens in Electron v21.1.1.

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Adam777Z]

This issue still happens in Electron v23.0.0.

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Adam777Z]

This issue still happens in Electron v24.2.0.

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Adam777Z]

This issue still happens in Electron v25.5.0.

[electron-issue-triage]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Adam777Z]

This issue still happens in Electron v27.0.4.

[electron-issue-triage]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Adam777Z]

This issue still happens in Electron v28.2.2.

[electron-issue-triage]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Adam777Z]

This issue still happens in Electron v30.0.3.