All content, including Ubisoft Club rewards and content packs you unlock for Far Cry New Dawn will be accessible in the corresponding in-game menus once you have arrived at Prosperity.
Consumables will be available in the weapon wheel and can be viewed in your Inventory.
Outfits will be available for customization in the Character tab.
Vehicles, depending on the type, will be available in the garage, helipad or harbor.
Weapons will be available in the weapon wheel and can be managed in the Character tab.
If you are having trouble locating your in-game content, please do not hesitate to get in touch.