Ticket #55824: #55824.patch

wp-content/themes/twentytwenty/style.css

@@ -3035 +3035 @@
 .is-style-outline .wp-block-button__link:not(.has-text-color) {
         color: inherit;
 }
-
+.is-style-outline>:where(.wp-block-button__link), :where(.wp-block-button__link).is-style-outline {
+    border: 2px solid;
+    
+}
 .is-style-outline .wp-block-button__link {
         padding: calc(1.1em - 0.2rem) calc(1.44em - 0.2rem);
 }