I have been through all the available help pages on how to change language from English(US) to English(GB). I've gone into the settings, added it as a language,moved it to the top of the list so it shows as the default language. I even tested by adding Spanish, then moved that to the top and sure enough everything turned to Spanish. However, when set to English(GB), in ChatGPT text box, if I right click and go down to languages, I am only presented with English(US) (which is ticked as default). Interestingly now, doing the same now offers me English(US) and Spanish(ES) but NO English(GB). Why, when I am clearly doing this correctly, is it not showing the option for English(GB)? Please advise as I don't want to go back to Chrome, but this is really irritating, especially in ChatGPT where it is constantly marking my spelling as incorrect.