I have one windows PC that has heritage back to 2016, was originally installed in Japanese, then switched to English. It always had a Windows 10 pro license, an

I have one windows PC that has heritage back to 2016, was originally installed in Japanese, then switched to English. It always had a Windows 10 pro license, and there is still in 2022 many places in the OS that only show up in Japanese. And many smaller and enterprise apps use region instead of language to set the language.