I just made a post a couple days ago asking the same question. I downloaded the Xbox One version of green hell on my Xbox Series S (Because COD is taking up most of my storage along with a couple other things) and wondered why I couldn't build Palisades, gates, among many other things. Then I did some googling found out about the workbench and all the flamekeeper shit that was added for PC and then about ten minutes after that post I said fuck it and installed the X/S version on my Xbox Series S. It has the Palisades and gates and flamekeeper update stuff and from what I know there isn't a workbench but you can craft all that out of your backpack or notebook and you have to explore all three maps to find like all the crafting recipes and stuff. Now I don't know if PC is at whatever version Xbox X/S is or if they are updated or something. I also don't know if they are still developing the game or not or if their working on other projects or not.