Alright, so I got around to playing the Switch version. Just a curiosity to note: It does appear the Japanese version may be included on the Western releases, but appears to be disabled for now. The icon updates accordingly when the system language is set to Japanese, but the game is, currently, locked to English. I suspect Nintendo will issue an update next month once the Japanese version launches to unlock it.
Still odd that we got it before Japan.
Anyways, playing through the game (for the first time) in English is... a slightly different experience. The name changes I'm gonna have to get used to a bit, but nothing major. However, there is one thing I have issue with this version of the game and it's... something about the handheld mode of the game. I haven't gotten a chance to play in docked mode yet, due to my dock being unhooked at the moment, but the portable mode feels... not quite as smooth as it could be. Like, it's not that the 30fps cap is bothering me in particular, but there's something about it that makes the game feel like it's "lagging", almost like a stutter. I don't remember experiencing this at all in my Japanese PS4 playthrough and it is bothering me a bit. I'm normally not sensitive to this sort of thing, but here it's... It just doesn't feel smooth.
Regardless, graphical presentation is nice enough, even if it's scaled back from the PS4 version. Controls feel smooth enough and I don't really have any issues with it. Looking at the file size, it does look to be on par with the PS4's, which is good, so people struggling with space for digital downloads should be pleased enough by this.
Will be nice to playthrough this game again, especially with less of a language barrier this time around (I do know Japanese, but I'm far from fluent).