What is the difference between link wrapping and 'use client' in Next.js?

Let's suppose we have two scenarios:

1. Link wrapping

   <Link href="/voice_monitor" passHref legacyBehavior>
     <Button component="a">Go to Voice Monitor</Button>
   </Link>
   

2. use client

   'use client';
   import Link from 'next/link';
   import { Button } from '@mantine/core';
   <Button component={Link} href="/voice_monitor">Go to Voice Monitor</Button>
   

Is one better for browser performance than the other (the code executes on the server, the browser won't have to download, parse, or execute the JavaScript bundle for the page)?