https://access.redhat.com/documentation/en-us/red_hat_build_of_apache_camel/4.0/html/getting_started_with_red_hat_build_of_apache_camel_for_quarkus/getting-started-with-camel-quarkus-extensions_camel-quarkus-extensions#camel-quarkus-overview

In the first section
1.1. Red Hat build of Apache Camel for Quarkus overview

There's a bullet that reads:

Takes advantage of the many performance improvements made in Camel 3, which results in a lower memory footprint, less reliance on reflection and faster startup times. 

And it should read Camel 4.

Here's a screenshot