Passwordless authentication is far superior to password-based security. Why don't we see passwordless authentication everywhere, you ask? Well, the main reason is that it's a little bit more difficult to implement, and many websites were simply built before passwordless authentication was popular. It requires changes in the system, and that means time and cost. Especially for big platforms with millions of users, such a switch could require a fundamental change to the system. But since it's more secure and easier for users, hopefully, at some point in the future, it will be standard.

Fortunately, passwordless authentication is not something that you need to build from scratch and figure out on your own.