No. Some mobile devices offer biometric login, which uses a physical characteristic belonging only to you (like your fingerprint or your face) to log you into your phone and into specific apps that you authorize. Biometric login is a convenient and safe way to log in, but it’s still only acting as a single “factor” to access your account and can only protect you if you’re using that same device where you have enabled a biometric login.
Even if you use something like Face ID on your mobile device, it’s still important to set up a second factor as an added layer of protection. The second factor helps protect your account in case someone other than you tries to access your account, or if you want to access your account from multiple devices.