A back button in fullscreen-mode

Have used Brave for years. On my laptop I use fullscreen a lot. And instead of right-clicking on a webpage to get the “back” function, it would be good to have it pop up when mouse-pointer is at the top (when the X for quit fullscreen comes up)- because it would be easier, and also - many webpages have full images and then u wont get the right right-click-menu at all. Would be awesome. Cheers.