FastUnlockX unlocks your iPhone X when it recognizes a valid FaceID facial recognition.
There are some exceptions which are enabled by default and can be configured from the tweak settings. Free. Open Source. No Patreon needed
FastUnlockX is (will be, submitted) available on the BigBoss repo. Use Cydia to search for and install. If you'd like to download the latest deb directly, it is available in the releases page.