My data point as an edge case: on a certain website, I have a throwaway account registered with a throwaway gmail account. I don't use that gmail account for an

My data point as an edge case: on a certain website, I have a throwaway account registered with a throwaway gmail account. I don't use that gmail account for anything else, and in order not to affect my regular Gmail login, I use incognito window. Now, whenever I need to log in to the website on a new device, I have to also login gmail as well (since the login credentials are never kept between sessions). This has been very annoying, and would not happen with password with 2FA.