Players have been asking for some time to see the Kingdom Hearts series come to Nintendo's portable/at-home hybrid Switch console since the Story So Far and All-in-One collections started spreading from PlayStation, to Xbox, and eventually to PC. However, in order to bring some of the more modern Kingdom Hearts titles to Switch, developer Square Enix has dropped the ball by relying on using cloud gaming to host the whole collection.
As a possible explanation and defense for Square Enix's decision regarding the use of cloud streaming for all the Kingdom Hearts titles in the collection, these aren't direct ports of PS2 games or titles as they originally launched on other mobile devices. Many of them have gone through remastered treatments to get the series running optimally on PS4 and Xbox One, as well as PC now, giving each of these games higher requirements than the originals. That being said, sacrifices could have been made to prepare the games to run native on Switch that may not have been noticeable when compared to the original versions of earlier Kingdom Hearts games.
To start getting into the specifics of the Kingdom Hearts Integrum Masterpiece, as the Switch version has been named, it may be best to look at what the collection does well. As a result of the cloud streaming the collection uses, much of the loading and processing is done on a series of servers that have an impressive amount of processing power available. This means that the loading times are lightning-fast across the seven games and three video collections, with time to load a new world or area comparing with backward-compatible versions on PS5 and Xbox Series X/S. It is truly impressive, and makes exploring through levels like Agrabah and Wonderland
Read more on gamerant.com