It's not just what's printed on them, really. I touch type, but a US keyboard have different shapes. For instance a longer left shift, and then go straight to Z

It's not just what's printed on them, really. I touch type, but a US keyboard have different shapes. For instance a longer left shift, and then go straight to Z, while we have an extra button inbetween. After jkl we have three buttons and then a thin and tall enter, but you have two and a short enter.