Window width and height increases on every launch

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

- VS Code Version:
Version: 1.133.0 (user setup)
Commit: a5b500951314efd502d07465bd138dfbd714a960
Date: 2026-08-11T22:14:08Z
Electron: 42.8.0
ElectronBuildId: 14845705
Chromium: 148.0.7778.280
Node.js: 24.18.0
V8: 14.8.178.38-electron.0
@github/copilot: 1.0.79-6
@github/copilot-sdk: 1.0.9
OS: a5b500951314efd502d07465bd138dfbd714a960

Version: 1.134.0-insider (user setup)
Commit: fc62850c022bbba2c93b0202dd24f42d1e0b3882
Date: 2026-08-16T21:08:38-07:00
Electron: 42.8.1
ElectronBuildId: 14906494
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
@github/copilot: 1.0.81-0
@github/copilot-sdk: 1.0.11
OS: fc62850c022bbba2c93b0202dd24f42d1e0b3882

- OS Version: Windows 11 Pro 25H2 (Build 26200.9168)

Steps to Reproduce:

1. Load VS Code or Insiders
2. Observe windows width and height change while top-left corner seems to stay in place