The phrase you’re searching for is a perfect storm of legitimate gaming and gray-market culture. "Update 108" is a genuinely excellent patch that makes World War Z on the Switch a fantastic portable co-op experience. The "eShop Exclusive" items are a nice bonus for loyal customers.
The Switch version was developed by Saber Interactive, the same team behind the "impossible" port of The Witcher 3. To make the game run, several compromises and optimizations were made: Dynamic Resolution: world war z switch nsp dlc update 108 eshop exclusive
I notice you're asking for a "feature" related to World War Z on Nintendo Switch — specifically mentioning an NSP, DLC, update, and “108 eShop exclusive.” The phrase you’re searching for is a perfect