I noticied that when I using Google Bard, Microsoft Edge shows the Bing AI Icon on URL bar, and, when i click on it, it opens Bing Ai side by side on Google Bard.
MS seem to be pushing out some new icon or toolbar in one of their products at about a rate of 1/week. Yesterday my mother's PC suddenly got some new search box in the taskbar with a picture of a cartoon giraffe in it. Before that, there was some kind of fancy interactive Bing toolbar overlaid on the desktop wallpaper, and before that there was some bulbous Bing icon and big vertical toolbar on the right side of the browser.
Don't use Edge? Microsoft frequently enshittifies their browsers...