You setup passkeys for all your devices with biometric features. I know I have a Yubikey for my desktop, facial recognition on my phone, and a fingerprint reader on my laptop. So, I setup 3 passkeys using biometric (fingerprint or face). I also kept my password and 2FA for now because it’s all new. I wouldn’t recommend jumping in face first.
I only am using it on a few key sites and partly because I’m a web developer testing it all out. I wouldn’t advise it for the average user at the moment but it’ll mature and many password managers can store passkeys now. As it matures, I’m hopeful it becomes seamless like FaceID and fingerprint readers.