Which means we really need to copy core's Stable view template

agaric/templates/views/views-view--page.html.twig

@@ -1,19 +1,66 @@
-{% extends "@stable/views/views-view.html.twig" %}
-{% set style = view.getStyle().getPluginId() %}
-{% set default_row_class = view.style_plugin.options.default_row_class %}
-{% set has_view_mode = view.rowPlugin.options['view_mode'] is defined or view.rowPlugin.options['view_modes'] is defined %}
 {#
-  Only apply to unformatted (default) displays without a row class and with a
-  selected view mode.
+/**
+ * @file
+ * Theme override for main view template.
+ *
+ * Available variables:
+ * - attributes: Remaining HTML attributes for the element.
+ * - css_name: A css-safe version of the view name.
+ * - css_class: The user-specified classes names, if any.
+ * - header: The optional header.
+ * - footer: The optional footer.
+ * - rows: The results of the view query, if any.
+ * - empty: The content to display if there are no rows.
+ * - pager: The optional pager next/prev links to display.
+ * - exposed: Exposed widget form/info to display.
+ * - feed_icons: Optional feed icons to display.
+ * - more: An optional link to the next page of results.
+ * - title: Title of the view, only used when displaying in the admin preview.
+ * - title_prefix: Additional output populated by modules, intended to be
+ *   displayed in front of the view title.
+ * - title_suffix: Additional output populated by modules, intended to be
+ *   displayed after the view title.
+ * - attachment_before: An optional attachment view to be displayed before the
+ *   view content.
+ * - attachment_after: An optional attachment view to be displayed after the
+ *   view content.
+ * - dom_id: Unique id for every view being printed to give unique class for
+ *   Javascript.
+ *
+ * @see template_preprocess_views_view()
+ */
 #}
-{% if (style == 'default') and (not default_row_class) and has_view_mode %}
-  {# Add columns classes to the wrapper. #}
 {%
   set classes = [
-      'columns',
-      'is-multiline',
-      'is-centered'
+    dom_id ? 'js-view-dom-id-' ~ dom_id,
   ]
 %}
-  {% set attributes = attributes.addClass(classes) %}
+<div{{ attributes.addClass(classes) }}>
+  {{ title_prefix }}
+  {{ title }}
+  {{ title_suffix }}
+
+  {% if header %}
+    <header>
+      {{ header }}
+    </header>
   {% endif %}
+
+  {{ exposed }}
+  {{ attachment_before }}
+
+  {{ rows }}
+  {{ empty }}
+  {{ pager }}
+
+  {{ attachment_after }}
+  {{ more }}
+
+  {% if footer %}
+    <footer>
+      {{ footer }}
+    </footer>
+  {% endif %}
+
+  {{ feed_icons }}
+</div>