Default N/A option removal for Boolean fields

core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsButtonsWidget.php

@@ -63,7 +63,7 @@ public function formElement(FieldItemListInterface $items, $delta, array $elemen
    * {@inheritdoc}
    */
   protected function getEmptyLabel() {
-    if (!$this->required && !$this->multiple) {
+    if (!$this->required && !$this->multiple && ($this->field_type != 'boolean')) {
       return $this->t('N/A');
     }
   }

core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsWidgetBase.php

@@ -48,6 +48,12 @@ abstract class OptionsWidgetBase extends WidgetBase {
   // phpcs:ignore Drupal.NamingConventions.ValidVariableName.LowerCamelName
   protected bool $has_value;
 
+  /**
+   * Tracks the field type.
+   */
+  // phpcs:ignore Drupal.NamingConventions.ValidVariableName.LowerCamelName
+  protected string $field_type;
+
   /**
    * The array of options for the widget.
    */
@@ -66,11 +72,13 @@ public function __construct($plugin_id, $plugin_definition, FieldDefinitionInter
    * {@inheritdoc}
    */
   public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
+
     // Prepare some properties for the child methods to build the actual form
     // element.
     $this->required = $element['#required'];
     $this->multiple = $this->fieldDefinition->getFieldStorageDefinition()->isMultiple();
     $this->has_value = isset($items[0]->{$this->column});
+    $this->field_type = $this->fieldDefinition->getFieldStorageDefinition()->getType();
 
     // Add our custom validator.
     $element['#element_validate'][] = [static::class, 'validateElement'];