My 10 cents about the ‘default’ language option and UX.
(I read the answer here Consentbanner - Languages)
Currently, if I open a website in a ‘clean’ (incognito) browser I get English per default, even though I’ve selected another language as ‘default’ in the Piwik Tool. (My browsers are set to English). I did expect the selected ‘default’ language.
However, it works as described in the help center.
The browser language is the real default.
I have a suggestion for another approach that is more user-friendly both for us setting up Piwik and for our visitors:
As you have a ‘default language’ option this should be default at all times, no matter what the browser language is. This is likely to be the language the webpage is mainly written for.
If you make it possible to not select a ‘default language’, it could fall back to browser language. (could be useful for multilingual sites).
If there is no ‘default’ and it isn’t possible to resolve the browser language (or the language doesn’t exist as an option), I would prefer English as the last fallback option as this is the most popular language online. (OR - if possible - if the language list could be sorted, the number 1 language on the list).
Alternatively, we should not be able to set a ‘default’ language. It could be called something else then, like ‘fallback’ language. Which - to me - doesn’t add the same kind of value to the setting.