You can delete filters by locating them in their file destination. Every subfolder stores one model:MacOS: ~/Library/Application Support/Adobe/UXP/PluginsStorage/PHSP/23/Internal/com.adobe.nfp.gallery/PluginDataWindows: %appdata%\\Roaming\\Adobe\\UXP\\PluginsStorage\\PHSP\\23\\Internal\\com.adobe.nfp.gallery\\PluginData.