diff -u b/core/themes/claro/css/base/elements.css b/core/themes/claro/css/base/elements.css
--- b/core/themes/claro/css/base/elements.css
+++ b/core/themes/claro/css/base/elements.css
@@ -207,10 +207,6 @@
   list-style-image: none;
 }
 
-ul:not([type]) {
-  list-style-type: disc;
-}
-
 [dir="rtl"] ul {
   margin-right: 1.5em;
   margin-left: 0;
@@ -230,6 +226,2 @@
 
-ol:not([type]) {
-  list-style-type: decimal;
-}
-
 [dir="rtl"] ol {
diff -u b/core/themes/claro/css/base/elements.pcss.css b/core/themes/claro/css/base/elements.pcss.css
--- b/core/themes/claro/css/base/elements.pcss.css
+++ b/core/themes/claro/css/base/elements.pcss.css
@@ -166,9 +166,6 @@
   margin: 0.25em 0 0.25em 1.5em; /* LTR */
   padding-left: 0;
   list-style-image: none;
-  &:not([type]) {
-     list-style-type: disc;
-  }
 }
 [dir="rtl"] ul {
   margin-right: 1.5em;
@@ -182,9 +179,6 @@
 ol {
   margin: 0.25em 0 0.25em 2em; /* LTR */
   padding: 0;
-  &:not([type]) {
-    list-style-type: decimal;
-  }
 }
 [dir="rtl"] ol {
   margin-right: 2em;
diff -u b/core/themes/olivero/css/base/base.css b/core/themes/olivero/css/base/base.css
--- b/core/themes/olivero/css/base/base.css
+++ b/core/themes/olivero/css/base/base.css
@@ -155,7 +155,3 @@
   padding-inline-start: 0;
   list-style-image: none;
 }
-
-ul:not([type]) {
-  list-style-type: disc;
-}
diff -u b/core/themes/olivero/css/base/base.pcss.css b/core/themes/olivero/css/base/base.pcss.css
--- b/core/themes/olivero/css/base/base.pcss.css
+++ b/core/themes/olivero/css/base/base.pcss.css
@@ -138,5 +138,2 @@
   list-style-image: none;
-  &:not([type]) {
-     list-style-type: disc;
-  }
 }