One of the features Nintendo has touted for its paid Switch Online service launching later this month is cloud saves for games. However, it appears that not all Switch games will get support for the feature.
Game Informer first reported that Nintendo’s webpages for first-party games Pokemon Let’s Go, Pikachu, Pokemon, Let’s Go Eevee, and Splatoon 2 contains a message indicating they will not support cloud saves. The pages for third-party titles Dark Souls Remastered, Dead Cells, FIFA 19, and NBA 2K19 also have the message.
Source: IGN.com Some Switch Games Seemingly Won't Support Cloud Saves