A missing key in virtual macOS

British and US English are so different they require separate keyboards: ISO in the UK, and ANSI in the US. They’re easy to distinguish as the ISO version, used in Europe and much of the rest of the world, has different left Shift and Return keys. Count the keys, though, and there’s a more ‘sinister’ difference, as the ISO keyboard has an extra key at the left of the numbers.

Apple supplies ISO keyboards and layouts for many languages, but macOS virtualisation for Apple silicon Macs is an exception as it only supports ANSI. In practice, the difference you’ll notice is that missing key: in ISO English layouts, it won’t cause a problem, as that provides § and ± symbols. But in French, the ANSI layout loses @ and #, which are commonplace in computing, and make a virtual machine almost unusable.