Nvidia drivers not found in flathub?

Not sure what I did, but nvidia drivers are not being listed in flathub. How do debug this?

>flatpak search nvidia-455                 
No matches found

or

> flatpak search nvidia                                                                     
Name            Description                                                            Application ID                  Version Branch Remotes
Speech Note NV… Support for GPU acceleration with NVIDIA graphics cards in Speech Note ….mkiol.SpeechNote.Addon.nvidia 1.0.0   stable flathub
Nvidia System … Nvidia System Monitor Qt                                               io.github.congard.qnvsm         1.5     stable flathub
GreenWithEnvy   System utility designed to provide information, control the fans and … com.leinardi.gwe                0.15.6  stable flathub
GeForce NOW El… Unofficial GeForce NOW application written in Electron                 …b.hmlendea.geforcenow-electron 2.1.0   stable flathub
GPU-Viewer      A front-end to glxinfo, vulkaninfo, clinfo and es2_info                …hub.arunsivaramanneo.GPUViewer 2.29    stable flathub
Moonlight       Stream games and other applications from another PC running Sunshine … com.moonlight_stream.Moonlight  5.0.1   stable flathub
OpenShot Video… An easy to use, quick to learn, and surprisingly powerful video editor org.openshot.OpenShot           3.1.1   stable flathub
Minion          An AddOn manager for The Elder Scrolls Online and World of Warcraft    gg.minion.Minion                3.0.12  stable flathub
Sunshine        Self-hosted game stream host for Moonlight                             dev.lizardbyte.app.Sunshine     0.23.0  stable flathub
Titania X3D Ed… Edit, view, and navigate in X3D and VRML worlds                        de.create3000.titania           4.6.12  stable flathub
Clapper         Simple and modern GNOME media player                                   com.github.rafostar.Clapper     0.5.2   stable flathub
GPU Screen Rec… A shadowplay-like screen recorder for Linux. The fastest screen recor… …m.dec05eba.gpu_screen_recorder 3.7.1   stable flathub

They’re indeed not listed in flatpak search, I guess because they lack AppStream metadata. Does that matter though? There should never be a need to install them manually; flatpak update will do so automatically.

See:

flatpak remote-ls flathub | grep nvidia-455