As someone who's used and seen Apple and Lenovo/IBM laptops (thinkpads and macs are vast majority of what students at my school and co-workers at my jobs used)

As someone who's used and seen Apple and Lenovo/IBM laptops (thinkpads and macs are vast majority of what students at my school and co-workers at my jobs used) almost exclusively over the years, I was incredibly surprised to learn that fn|ctrl was non-standard.