How worried should we be about the "AutoSpill" credential leak in Android password managers?

This newly discovered vulnerability is real, but it’s more nuanced than that.

While much of the press coverage of AutoSpill has described it as an attack, it’s more helpful to view it as a set of unsafe behaviors that can occur inside the Android operating system when a credential stored in a password manager is autofilled into an app installed on the device.

Source: How worried should we be about the “AutoSpill” credential leak in Android password managers?

Basically, it isn’t such a good idea to have every app embed a web browser.

For example, don’t autofill your Facebook password within anything but the Facebook app and your browser.