Microsoft added the Skype Meet Now feature to Windows 10 preview builds earlier this year. The feature is now rolling out to non-Insider (general public) users. It will display a small button with a video camera icon on the system tray, which will launch Skype’s Meet Now web conferencing software when clicked. If the Skype app is not installed, Windows 10 will launch Microsoft Edge in Chromium-based Microsoft Edge, where you’ll need to create or join a Skype meeting. You can right-click on the icon and select ‘hide’ to disable it.
Source: https://www.bleepingcomputer.com/news/microsoft/how-to-disable-microsofts-new-meet-now-feature-in-windows-10/