If you’re using Windows 11, you’ll notice this icon on the taskbar. It’s for the chat function of Microsoft Teams.
If you don’t need to use Microsoft teams (which is mainly used by businesses), it’s easy to remove the icon from your taskbar. Start by hitting the Windows Key + I. Settings will open. Then click Personalization and Taskbar.
Slide the button next to Chat to the Off position.
The chat icon will disappear from your taskbar.