Setting Keyboard Shortcuts in Ubuntu 22.04 with gsettings (what's changed?)

It appears it should be relatively easy to set Super+C to launch my GNOME calculator in Ubuntu 22.04 with gsettings and the command line:

gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom999/ name "'Launch Calculator'"gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom999/ binding "'<Super>c'"gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom999/ command "'gnome-calculator'"

I issue the command, everything appears to work fine, then I press Super+C and nothing happens. What did I do wrong?

This will be part of a script, so I can't use any GUI solutions, although we could use the GUI (dconf, settings, etc.) for troubleshooting. In fact, that's what I've done and I can see the shortcut listed in my

dconf > org > gnome > settings-daemon > plugins > media-keys > custom-keybindings

however, it is missing from my

Settings > Keyboard > Keyboard Shortcuts > View and Customize Shortcuts

that seems to be a symptom of why "nothing happens" when I press Super+C.