Some of the search inputs could be updated to be more consistent and improve balance with each other and the rest of the pages.
https://www.figma.com/file/ejlKYV71qRFj8D6eQCwciM/New-docs-search-heuristic-evaluation?node-id=2-12660&t=qzQ6fAJCxhOTV728-4
For example, using the Pajamas component gives consistent icon, clear search action, and sizing: