Unable to input N in the post form when this app is opened in Edge's sidebar

[Ishotihadus]

This problem appears with all input methods (including the default English input method and AquaSKK).

I think the N key is handled even if the post form is opened.

In Edge's sidebar, apps are opened as Android apps (I think). As far as I know, this problem does not appear in other environments, including smartphone browsers.

Environment

OS: macOS 14.4
Edge: 122.0.2365.16 (Beta)