The release notes for the installer describe a list of kickstart commands that are usable or unsupported together with the ostreecontainer kickstart command, see:

Installation of bootable OSTree native containers is now available as a Technology Preview

This request is to document these supported/unsupported kickstart commands also in the installation guide describing the ostreecontainer kickstart command for better user experience:

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/automatically_installing_rhel/kickstart-commands-and-options-reference_rhel-installer#ostreecontainer_kickstart-commands-for-installation-program-configuration-and-flow-control