I improved and adapted this wallpaper highlighting the fingerprint sensor for our beloved 6T. Thanks to u/Reteurg for the original. Enjoy : r/OnePlus6t
Wallpaper Changer (Adaptive) - Apps on Google Play
Download Adaptive Wallpaper Changer MOD APK v1.1.4 for Android
Android 12 adaptive wallpaper theming to go open source in future release - Android Community