Tested with Electron 44.5.1 on Windows 11. The window starts with
backgroundThrottling: false.
Open this Gist in Electron Fiddle and click Run. Fiddle uses the prebuilt Electron release; building Electron or Chromium is not required.
- Click inside the page, press F9 to establish a normal baseline, and scroll with a two-finger touchpad gesture.
- Press F8. A second window covers the page for two seconds, then focus returns.