Wow, I think I never got a notification for this. Sorry for answering so late. I did check back that day with Unity 6 and just now with Unity 6.2 and no discernible incompatibilities are there. What I did encounter is that some materials of the fungus examples are pink in play mode, which just means that they need to be adapted and also in some of the examples using the Events gameobject, that it needs to be changed to the new input system event component. Other than that there are no compilation issues or warnings of deprecated API.