The section 12 does not distinguish the difference between host and in-container build, which makes the whole section unclear.
https://pantheon.corp.redhat.com/pantheon/preview/latest/6de9adfb-6e23-4898-9ad7-d63427abc57b#proc-producing-native-executable_quarkus-maven

Quarkus can produce a native executable without using a container. It requires to have GraalVM or Mandrel installed locally. I think it should be mentioned, as for a regular Quarkus users, that section is misleading.

Also, about the mentioned image, I would mention only UBI8 Minimal.