I'll gather more information from the search results. Let's open result 1 from search 6. is about a supposed OLED prototype leak.
Even the original Nintendo Switch had its own prototype saga. In 2021, a development system from April 2016—almost a full year before the console's retail release—was discovered in Hong Kong. Known as the (its codename before the Switch was officially announced), this unit featured different volume buttons, different screws, and was referred to by the codename "DPRD" on its board. prototype+2+nintendo+switch+exclusive
The rumor mill for a Prototype 2 Nintendo Switch exclusive began circulating around 2021 for several logical reasons: I'll gather more information from the search results