Hidden MacOS shortcuts: Control+v -> scrollDown; Control+y -> types 'd'

I just became aware of what I feel are 2 hidden macOS Monterey keyboard shortcuts when messing around in the Mac Notes app. Control+v scrolls down a nondeterministic number of lines. Control+y pastes from the system's clipboard I find control+v for scrolling down very useful to get to the bottom of something. These shortcuts are not in any official Apple documentation online that I checked notably https://support.apple.com/en-us/HT201236 and https://support.apple.com/guide/notes/keyboard-shortcuts-and-gestures-apd46c25187e/mac Does anybody know where these shortcuts are documented so I could find more like these?