Windows 10 build 18977

Windows 10 build 18977 is an unleaked build of Windows 10 May 2020 Update. A video was shown showcasing this build on 19 May 2020. It was showcased in the video "Building apps for Windows 10 Desktops and expanding reach w/ Windows Virtual Desktop" which was uploaded on YouTube by Microsoft 365 Developer on 19 May 2020.