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Or is it just one of Phil's balls in my throat?
Still coming out in Japan on PC and Xbox tho.
news-xbox-com.translate.goog
This Yahoo Japan article sheds more light, seems like CERO and IARC ratings are stricter for playstation content in Japan.
news.yahoo.co.jp

『Gears of War: Reloaded』のマルチプレイ ベータ テストが予約購入者向けに今週末から開催 - Xbox Wire Japan
「Gears of War」シリーズ 20 周年を一緒に祝いましょう。第一歩として、新たな世代を「Gears」の世界に迎え入れます。

notice:
Due to regional rating restrictions and platform policies, Gears of War: Reloaded will not be released for PlayStation 5 in Japan. Domestic players will still be able to play the game on launch day through Xbox Series X|S, Xbox PC, Game Pass, and Steam. We deeply apologize for any inconvenience caused to players in Japan who have been waiting for the release of this game.
This Yahoo Japan article sheds more light, seems like CERO and IARC ratings are stricter for playstation content in Japan.

「残虐描写でCEROレーティングが取得できなかった」国内PS5発売中止『Gears of War: Reloaded』より詳しい内容明らかに(Game Spark) - Yahoo!ニュース
マイクロソフトは、名作TPSのリマスター『Gears of War: Reloaded』の国内向けPlayStation 5版の発売を中止することを発表しましたが、その理由についてさらなる詳細が明ら
As a result of an interview with Microsoft in the editorial department, the person in charge confirmed that the CERO review could not be obtained, saying, "Blood, cruel depictions, and intense violence were the main factors, and the CERO rating could not be obtained." In recent years, PlayStation hardware has also supported the "IARC" rating, which is conditionally available more widely and worldwide, but games are not allowed to be released with the "IARC 18+" rating that the game obtained in parallel.
At the same time, the editorial department also interviewed whether there were any regulations specific to other domestic versions, but only received a response that the product would be released with the acquired IARC rating (IARC 18+). However, since we have not received the fact that the IARC rating has been reacquired only for the Japan region, it seems that we can expect that the content will be unregulated or close to it for other models.