The Bug:

Several search fields in the launcher, are not selected when clicking on the search icon.

Steps to Reproduce:

• Open the Minecraft Launcher.
• Navigate to the "Installations" tab.
• Click on the "Installation name" search icon.
  →  Notice how the search field is not selected.

• Open the Minecraft Launcher.
• Navigate to the "Minecraft Dungeons" section.
• Navigate to the "DLC" tab.
• Click on the "DLC or bundle name" search icon.
  →  Notice how the search field is not selected.

• Open the Minecraft Launcher.
• Navigate to the "News" section.
• Click on the "News title" search icon.
  →  Notice how the search field is not selected.

Information:

This feature may, "Works As Intended", however, I'd expect the search fields to be selected upon clicking the search icons.