Was added additional property file "app.local.properties". It is optional file for overriding 'app.properties' file of the basic properties of project. Was reverted host port from 88 to 80.
I am following https://spring.io/blog/2024/11/26/http3-in-reactor-2024 but using Spring Boot 4.0.0-SNAPSHOT with Reactor Netty 1.3.0.M6 where HTTP3 is graduated from ...