Power Refresh
I got annoyed with Windows not having a native way to do this. App is 15kB.
Auto-switch a laptop display refresh rate based on power source on Windows 11:
- Plugged in (AC) → 120 Hz
- On battery → 60 Hz
It runs as a lightweight system-tray app. No install, no admin, no .NET SDK - compiled against the .NET Framework 4.x runtime that ships with Windows 11.