Note that the list of new things possible in UE5.6 is from UE perspective, pulled from Epic’s change notes. Even after the upgrade to UE5.6, it does not mean that all these features will automatically be seen in the game.
Inzoi developers still have to make appropriate changes in the game (at code level) to implement whichever of these new features of UE5.6 are considered necessary and those that can be done without severely impacting the game at this stage.
In short, not all of the above stated new features may be implemented or seen in the game at this time. So better to word the beta feedback clearly, ask questions if a feature from UE5.6 was implemented if at all, and then post feedback/bugs.