UDP is not a privileged protocol. You don't need any capabilities to speak UDP. It's used by web browsers already for HTTP/3 as TFA mentions.
But also, apps needing additional capabilities is rather common and handled by most any package manager that's going to be providing you a browser. Chrome in various configurations ships with a `setuid` binary to implement their sandbox, for instance.
But also, apps needing additional capabilities is rather common and handled by most any package manager that's going to be providing you a browser. Chrome in various configurations ships with a `setuid` binary to implement their sandbox, for instance.