Google have always had problems with people who do not fit - e.g. speaking multiple languages, not speaking the majority language in their country ec.

I remember back when i had a site with Google ads on it (about 15 or 20 years ago) I could not change some selection to do with what ads were shown on my .co.uk site to UK because I was not in the UK at the time.

There were other issues with default language assumptions, which were worse as they changed over time. They really should respect browser settings.

Its not just Google. A lot of websites use national flags for languages, which has practical problems in countries that speak many languages, and frequently has political overtones.