It appears another "gigaleak" has gone down, involving Nintendo. According to sources online, it appears that Game Freak has been hacked, resulting in internal data from the company being leaked to the public. Those involved in the hacking community or those within general Pokemon related groups...
You can just follow the guide they made for it.
https://youtu.be/LnGVcYo4uZQ
*edit- who the hell would be downvoting me for this? It’s literally the guide to run it on steam deck. I think it’s even one of the games co developers that made the guide.
Thanks!!!