When configuring an Apex Domain (example.com) as a Custom Domain for your project on Vercel, you will be given an IP address to add as an A record in your DNS configuration.
Although this IP address resolves to a specific geographic location, it does not mean that when your users point to your domain, they will be sent to this specific geographic location to resolve the domain. Because Vercel uses a system called Anycast networking, the domain will be resolved to the closest Edge Network location relative to your users.