But the improvements to memory use coming to Edge and Chrome derive from Microsoft expanding the availability of Windows segment heap memory to Win32 applications.

Microsoft announced the public preview launch of Win32 app isolation, a new Windows 11 security feature designed to sandbox Windows desktop applications using the Win32 API.

Windows 10 Creators Update can block Win32 apps if they’re not from the Store It appears to be an almost exact clone of macOS's Gatekeeper feature.