The hegemony of software only accepting . has de facto pushed the standard everywhere for computers, but here in France I still write with a comma, but type with a dot.
A few years ago Excel and some other softwares started to be locale dependent and I never wanted to burn my computer this much
French dev currently working for a French but global client, here. The UI of the timesheet app is in English but the fields only accept `,` as decimal point. It's so needlessly confusing.
That's one of the great boons of localization. The webapp knows you're in France, so it tries to do the right thing, while giving you a US English UI. I experience the same thing, but got used to it somehow.
Another good example is how "İ" is popping up everywhere, even in English, because of misconfigured locale settings and how changing case is affected by it. We (Turks) are responsible for that, sorry (We have ı,i,I,İ =D ).
A few years ago Excel and some other softwares started to be locale dependent and I never wanted to burn my computer this much