Description

The role of quarkus.oidc.authentication.session-age-extension is not to extend the real session's age (ID token's age) but to make sure this token is available to Quarkus for a re-verification, possible auto-refresh, etc, even if the ID token expired.

Implementation ideas

Set to say 8 hours by default, and it will eliminate a lot of OIDC related session queries and concerns.
Also make it much clearer in the docs...