Filters, metadata and gutenberg

On my dev site I have a custom post type with a metadata date field. The date is stored as YYYY-MM-DD. I have a filter which converts this to date format “jS M, Y” for display –

function s25_filter_event_fields($metadata, $object_id, $meta_key, $single){
        if('event_date' === $meta_key){
            /* $metadata is always null -
               remove filter to prevent infinite loop when retrieving value
             */
            remove_filter( 'get_post_metadata', 's25_filter_event_fields', 10 );
            $current_meta = get_post_meta( $object_id, 'event_date', TRUE );
            /* reinstate the filter now that we have got the value */
            add_filter('get_post_metadata', 's25_filter_event_fields', 10, 4);
            $date = strtotime($current_meta);

            $newdate = date("jS M, Y", $date);
            
            return $newdate;
        }
}

add_filter('get_post_metadata', 's25_filter_event_fields', 10, 4);

The filter runs on the front end and on the Gutenberg editor correctly but I also have a custom input control in the editor :-

registerPlugin( 'event-controls', {
    render: () => {
	// Add your custom code here.
	const postType = useSelect(
	    ( select ) => select( 'core/editor' ).getCurrentPostType(),
	    []
	);

	const [ meta, setMeta ] = useEntityProp( 'postType', postType, 'meta' );

	if ( 'event' !== postType ) {
	    return null;
	}
	return (
		<PluginDocumentSettingPanel
	    title={ 'Event info' }
		>
		<VStack>
		<InputControl
	    label={ 'Event Date' }
	    value={ meta?.event_date }
	    onChange={ ( value ) => setMeta( {
		...meta,
		event_date: value || null
	    } ) }
		/>
		</VStack>
		</PluginDocumentSettingPanel>
	);
    }
} );

The filter also runs in the input control which breaks the storing of the metadata.

Is there any way to either :-

• (the best option) prevent the filter from being applied to the input control? or
• (second best) prevent the filter from being applied in the Gutenberg editor?