diff -u b/core/profiles/demo_umami/config/install/views.view.articles_aside.yml b/core/profiles/demo_umami/config/install/views.view.articles_aside.yml
--- b/core/profiles/demo_umami/config/install/views.view.articles_aside.yml
+++ b/core/profiles/demo_umami/config/install/views.view.articles_aside.yml
@@ -149,13 +149,50 @@
       footer: {  }
       empty: {  }
       relationships: {  }
-      arguments: {  }
+      arguments:
+        nid:
+          id: nid
+          table: node_field_data
+          field: nid
+          relationship: none
+          group_type: group
+          admin_label: ''
+          default_action: default
+          exception:
+            value: all
+            title_enable: false
+            title: All
+          title_enable: false
+          title: ''
+          default_argument_type: node
+          default_argument_options: {  }
+          default_argument_skip_url: false
+          summary_options:
+            base_path: ''
+            count: true
+            items_per_page: 25
+            override: false
+          summary:
+            sort_order: asc
+            number_of_records: 0
+            format: default_summary
+          specify_validation: false
+          validate:
+            type: none
+            fail: 'not found'
+          validate_options: {  }
+          break_phrase: false
+          not: true
+          entity_type: node
+          entity_field: nid
+          plugin_id: node_nid
       display_extenders: {  }
     cache_metadata:
       max-age: -1
       contexts:
         - 'languages:language_content'
         - 'languages:language_interface'
+        - url
         - 'user.node_grants:view'
         - user.permissions
       tags: {  }
@@ -172,6 +209,7 @@
       contexts:
         - 'languages:language_content'
         - 'languages:language_interface'
+        - url
         - 'user.node_grants:view'
         - user.permissions
       tags: {  }
diff -u b/core/profiles/demo_umami/demo_umami.info.yml b/core/profiles/demo_umami/demo_umami.info.yml
--- b/core/profiles/demo_umami/demo_umami.info.yml
+++ b/core/profiles/demo_umami/demo_umami.info.yml
@@ -6,6 +6,7 @@
 dependencies:
   - node
   - history
+  - big_pipe
   - block
   - breakpoint
   - ckeditor
diff -u b/core/profiles/demo_umami/themes/umami/css/components/blocks/search/search.css b/core/profiles/demo_umami/themes/umami/css/components/blocks/search/search.css
--- b/core/profiles/demo_umami/themes/umami/css/components/blocks/search/search.css
+++ b/core/profiles/demo_umami/themes/umami/css/components/blocks/search/search.css
@@ -3,6 +3,10 @@
  * This file is used to style the search block.
  */
 
+.search-form + h2 {
+  margin: 0 14px 1rem;
+}
+
 .search-block-form {
   display: none;
 }
@@ -60,13 +64,14 @@
 }
 .form-search {
   width: 26em;
+  max-width: calc(100vw - 6.25em);
   height: auto;
   margin: 0;
   padding: 0.5em 6.25em 0.5em 2.25em;
   border: 1px solid #dbdbdb;
   border-right: none;
   border-radius: 3px;
-  font-size: 0.875rem; /* 14px */
+  font-size: 0.875rem;
   line-height: normal;
   background: url(../../../../images/svg/search.svg) no-repeat 0.5em center #fff;
   background-size: 1.5em;
diff -u b/core/profiles/demo_umami/themes/umami/umami.theme b/core/profiles/demo_umami/themes/umami/umami.theme
--- b/core/profiles/demo_umami/themes/umami/umami.theme
+++ b/core/profiles/demo_umami/themes/umami/umami.theme
@@ -65,9 +65,19 @@
   $request = \Drupal::request();
   if ($route = $request->attributes->get(RouteObjectInterface::ROUTE_OBJECT)) {
-    $variables['current_page_title'] = \Drupal::service('title_resolver')->getTitle($request, $route);
+    // Search page titles aren't resolved using the title_resolver service - it
+    // will always return 'Search' instead of 'Search for [term]', which would
+    // give us a breadcrumb of Home >> Search >> Search.
+    // @see https://www.drupal.org/project/drupal/issues/2359901
+    // @see https://www.drupal.org/project/drupal/issues/2403359
+    if (($entity = $request->attributes->get('entity')) && $entity->getEntityType()->id() == 'search_page') {
+      $variables['current_page_title'] = $entity->getPlugin()->suggestedTitle();
+    }
+    else {
+      $variables['current_page_title'] = \Drupal::service('title_resolver')->getTitle($request, $route);
+    }
   }
   // Since we are printing the 'Current Page Title', set the cache to match
   // the URL cache. If we don't, then we might end up with something like
-  // "Home >> Articles" on the Recipes page, which should read "Home >> Recipes".
+  // "Home > Articles" on the Recipes page, which should read "Home > Recipes".
   $variables['#cache']['contexts'][] = 'url';
 }