Lee, S., & Kim, J. (2021). International Journal of Human–Computer Interaction , 37(8), 725–734.
The effects of icon font size on visual search performance and subjective preference in a desktop environment
It directly answers the question of desktop icon font size (not mobile or web), includes objective performance metrics, controls for display resolution, and provides actionable design guidelines. Where to find it: Search in Google Scholar or your university library for: "icon font size" desktop visual search or "font size" desktop icon usability
