>>715705682Except for Kanon and maybe the two VNs Amairo Chocolate and The Fox Awaits Me HANA, these are games all made for consoles first, that may or may not have received PC ports later. Most of them were already rated by the ESRB or PEGI before being blocked by Nintendo themselves. Kanon received heavy additional censorship from its version on the Japanese e-shop, while Amairo Chocolate was explicitly already rated before being postponed and then canceled. IFI also explictly blamed the "Nintendo Guidelines" when the Neptunia Re;Births and DERQ Code Z were canceled.
>December 4, 2023 ■The release date of the Nintendo Switch version of “Amairo Chocolate” has been decided on March 28, 2024 (Thursday).
>January 12, 2024 ■The rating has been assigned to ESRB: Mature.
>February 22, 2024 ■Notice of postponement of release.
>I regret to inform you that we have to postpone the release date of the product. We will notify you as soon as the distribution date and time is decided, so thank you for your understanding.
>(The change of release date is only for the U.S. and European regions.)
>March 25, 2024 ■Notification and Apology for the Cancellation of the Release of “Amairo Chocolate” for North American and European Regions. [Release]
>The physical and digital versions released in Japan and Asia include multiple languages (English, Japanese, Traditional Chinese, and Simplified Chinese).
https://dramaticcreate.com/amachoco/en/
So it's definitely not regional boards.