This is a little thing indeed, but many(including myself) consider it to be a quality of life feature and that is the ability to detach the video from the browser player and resizing and moving it wherever the user wants. For example, in Opera, ** no matter the site and video player**, there is a little icon on the video that let’s you do exact that and the video and audio remain synced nicely.
Also, on a little side note, when Brave tells me that i can pick a new theme, it get’s the theme but the backgrounds of the new tab remain the standard randomized ones.