As of Java 25 EA Build 28, the javadoc tool processes Markdown in the @see tag correctly if used as follows:

/// @see <a href=""></a>[hello](https://openjdk.org/jeps/467)
public class SomeClass {
}

Result:

As of IntelliJ IDEA 2025.1.3, such link are still not rendered.

We should wait for future releases of JDK and IntelliJ to make it look better.