This is the buttons linking (mostly) to external information in the bottom right when on the main menu. My display is 2560x1440 and scaling is set to (only) 120%. Clearly there is plenty of room around the buttons, and I assume it was just forgotten to scalen them with the rest of the UI or something similar.
I'm on v0.7.5 (b445), which is current experimental, in case that matters.
