For instance, in Portuguese, the Mac keyboard [1] has the + key two keys to the right of 0, and you use shift to input *. Meanwhile, on Windows [2], this key is one row below next to P, with the place it is on Mac occupied by «/». Most of the AltGr keys are also in different spots (particularly { and }), which makes this a major pain if you consistently switch between Windows and Mac.
Frankly I prefer the Mac layout, in part due to the Cmd/Ctrl split, but also because I believe it assigns more meaningful symbols to keys (I have literally never used «/», the internet will tell you that’s how quotations are done in Portuguese but everyone, books included, uses “/”).
I never saw any explanation as to why these differ. Does anyone know of any other languages where this happens? It doesn’t seem to be very common!
[1]: https://store.storeimages.cdn-apple.com/1/as-images.apple.co... [2]: https://upload.wikimedia.org/wikipedia/commons/2/2c/KB_Portu...