How to unsubscribe from amazon everywhere?

I have often watched films and series with various friends via Amazon Prime Video. When we used their laptop (or similar), I logged on to it and never logged off. Now I would like to unsubscribe from virtually everywhere at once. It works with Netflix, Google, etc., but I can't find it with Amazon. You can only log out of the devices from which I downloaded the Amazon Video App. But we logged in via the browser and I can't find that anywhere.

Does anyone know if and how it works?

Happy New Year ❤

Change password, then you have to log in again everywhere

Thank you 🙏