Buttons in menu screens with enough options to prompt a scroll bar, will render the text from the scrolling buttons on top of the static ones.
This has been seen in the Edit game rule screen in Create world or the Select World screen if enough worlds are listed.
Repro steps
Create a new world
Click the "Game Rules" button
Drag the slider up and down
Observe that text from the scrolling buttons will render on top of the static buttons at the bottom of the screen.
See attached video for more information,
Duplicate of MC-184609