I would like the browser Tab to provide a visual indicator that there is new unseen activity on that website in that tab. This is for quick visual identification to know whether or not I have new email, or replies to a forum post, etc.
This will improve user experience because I will not have to go check Tabs manually to know whether or not there is any activity.
For users with open and un-suspended (because of low power mode) Tabs, they will see a small "red dot" covering part of the website's favicon in the tab, when there is new activity (The color needs to be obvious like red or yellow).
Please see attached screenshot of Brave. The tab with the visual indicator is my email tab, and this means that I have new email since I last was in that browser tab.
