The upgrade planner tool https://upgrade-planner.pivotal.io/ shows a warning when loading GenAI or Postgress tiles via the diagnostic report indicating the tiles are not recognized.
This issue is die to a software defect.
Tanzu R&D is fixing this issue on a future release of the update planner tool.
Meanwhile and as a workaround, the tiles can be manually added at the end of the page of the upgrade planner.