An idea inspired by my experience with Vivaldi browser :
Going to the next/previous tab by mouse scrolling
This features helped me to be more productive in my navigation since I don't have to search the tab I want to go, just scrolling until I'm on it. Plus, when I know in which order are my tads, it's even faster. For example, if I'm on the fifth tab and want to go to the second, I just have to scroll down three times/notches.
And finally, it could be an accessibility features since it will help people with dexterity problem (like Parkinson disease), they will no longer struggle to clic on the tab they want.
Un utilisateur français qui n'aura pas trouvé de quoi râler sur votre navigateur. Good job !