Cross browser compatibility broken if responsive image multiplier is used

I'm unable to reproduce this in HEAD with Firefox 126 and Chrome 125. Perhaps this is outdated? Marking PMNMI in case there are additional steps to reproduce.

Firefox:

Chrome:

Diff of the responsive image style config below:

diff --git a/sites/default/files/config/sync/responsive_image.styles.3_2_image.yml b/sites/default/files/config/sync/responsive_image.styles.3_2_image.yml
index 3993347dbd..cda9d07e16 100644
--- a/sites/default/files/config/sync/responsive_image.styles.3_2_image.yml
+++ b/sites/default/files/config/sync/responsive_image.styles.3_2_image.yml
@@ -3,25 +3,37 @@ langcode: en
 status: true
 dependencies:
   config:
-    - image.style.large_3_2_2x
+    - image.style.large
+    - image.style.large_21_9
     - image.style.large_3_2_768x512
-    - image.style.medium_3_2_2x
-    - image.style.medium_3_2_600x400
+    - image.style.medium
+    - image.style.square_small
+  theme:
+    - umami
 _core:
   default_config_hash: mtmXtN8C-WzPGe-FLVGv1SrYZn1g5va-X8LeQt3iGoE
 id: 3_2_image
 label: '3:2 Image'
 image_style_mappings:
   -
-    image_mapping_type: sizes
-    image_mapping:
-      sizes: 100vw
-      sizes_image_styles:
-        - large_3_2_2x
-        - large_3_2_768x512
-        - medium_3_2_2x
-        - medium_3_2_600x400
-    breakpoint_id: responsive_image.viewport_sizing
+    image_mapping_type: image_style
+    image_mapping: large_21_9
+    breakpoint_id: umami.wide
     multiplier: 1x
-breakpoint_group: responsive_image
-fallback_image_style: large_3_2_768x512
+  -
+    image_mapping_type: image_style
+    image_mapping: large_3_2_768x512
+    breakpoint_id: umami.wide
+    multiplier: 2x
+  -
+    image_mapping_type: image_style
+    image_mapping: large
+    breakpoint_id: umami.narrow
+    multiplier: 1x
+  -
+    image_mapping_type: image_style
+    image_mapping: medium
+    breakpoint_id: umami.narrow
+    multiplier: 2x
+breakpoint_group: umami
+fallback_image_style: square_small