I have a strange 'binoculars' icon in my menu bar that disappears when I log in
The binoculars icon may be present after ending a screen sharing session using tools like Google Meet or Slack, if those tools do not correctly shut down the screen recording functionality.

To eliminate the binoculars icon, just quit Slack and Google Meet. Restarting the computer should also work to make the icon go away.

Source: Reddit.com