Explain? Why can't you use English for example?

Sometimes Google seems / seemed to decide its idea of your location should trump your browser or even account settings. At one point our (Swiss, in England) office often had Google.com deciding we should be reading in Polish. Never really understood why.

In my settings I applied Kyrgyz as my primary language and English as the second one: https://imgz.org/iCtBEEby.png

For some reason Google decides that I prefer Russian even if I am forcing it to use English (assuming that `?hl=en` switches the interface language): https://imgz.org/i36byD3g.png