Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

No response

Description

Adding an IconButton with matListItemMeta directive into the multine list item causes incorrect rendering of the hover shadow (see the screeshot attached)

<mat-list>
  <mat-list-item>
    <span matListItemTitle>Incorrect Trailing Icon 1</span>
    <span matListItemLine>Second line</span>
    <span matListItemLine>Third line</span>
    <button matIconButton matListItemMeta>
      <mat-icon>info</mat-icon>
    </button>
  </mat-list-item>
</mat-list>

Reproduction

StackBlitz link: https://stackblitz.com/edit/hexovpvm?file=src%2Fexample%2Flist-variants-example.html,src%2Fexample%2Flist-variants-example.ts&startScript=start
Steps to reproduce:

1. Hover over the IconButton next to the first two list items. Notice, that the icon isn't centered
2. Hover over the IconButton next to the last list item. Notice, that in case of one-line list items the icon is rendered correctly

Expected Behavior

The icon should always be centered inside hover shadow

Actual Behavior

The icon isn't centered inside hover shadow

Environment

• Angular: 20.2.8
• CDK/Material: 20
• Browser(s): chrome
• Operating System (e.g. Windows, macOS, Ubuntu): macOS