I face the same specific issue. I started with the French (Canada) layout years ago but now Windows sets the default to Multilingual/CSA because it has been made the official one by the government a number of years ago.
So now everyone that got used the “old” one has to fiddle with keyboard settings every time they use a new Windows session/computer.
And it’s not exactly a breeze to switch, as Windows often keeps the multilingual one and switches back to it when you use a different application. Gotta make sure to delete the multilingual and leave only one layout. It’s a real annoyance.
I don’t know for dogs but I read that other species have different “accents” depending on their group and where they live.
Apparently, animals like dolphins, orcas and whales have different “accents”. And birds apparently also sign differently depending on their group and location.
Like, some ducks quack differently, from one region to another. I don’t think this can hamper simple communication, but there is apparently variation in their calls.