Why does nvidia-detector return a value when nvidia should be purged? Where is this remnant?

Currently, the NVidia driver is unloaded from my system, as reported by inxi, lsmod, and dpkg:

$ inxi -SG --displaySystem:  Host: mycomp Kernel: 5.15.0-106-generic x86_64 bits: 64 Desktop: N/A    Distro: Ubuntu 22.04.4 LTS (Jammy Jellyfish)Graphics:  Device-1: NVIDIA GP102 [GeForce GTX 1080 Ti] driver: N/A  Display: server: X.org v: 1.21.1.4 driver: X: loaded: nouveau,vesa    unloaded: fbdev,modesetting gpu: N/A  Message: No GL data found on this system.$ lsmod | grep nvidia$ dpkg -l | grep nvidia$

But nvidia-detector still seems to detect a remnant somewhere:

$ nvidia-detectornvidia-driver-550$

Where is this remaining driver and how do I remove it? Thanks!