bug(MatMenu): MatTooltip receives focus using arrow key navigation on the keyboard

[sonegobruno]

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

v17

Description

When navigating menu items using arrow keys (Up/Down), tooltips are receiving focus and blocking further navigation. This prevents users from moving between menu items using the keyboard.

Reproduction

StackBlitz link: StackBlitz

Steps to reproduce:

1. Open the menu
2. Use Up or Down arrow keys to navigate between items
3. Observe that navigation stops when reaching an item with a tooltip

Expected Behavior

• Users should be able to navigate through all menu items using arrow keys
• Tooltips should be displayed without intercepting focus
• Navigation should continue smoothly regardless of tooltip presence

Actual Behavior

• Arrow key navigation stops when reaching an item with a tooltip
• The tooltip receives focus instead of remaining as a non-interactive hint
• Users cannot continue navigating past items with tooltips

Environment

• Angular: 20.3.16
• CDK/Material: 20.2.14
• Browser(s): Chrome latest
• Operating System (e.g. Windows, macOS, Ubuntu): Ubuntu