Additional chat-related features and issues within Microsoft Teams for business
HI,
Got the same problem in the new Teams. I use a Danish keyboard, but chat I do in Teams is primarily in English (Windows 11 is set to English display language; but Teams have decided to display in Danish language... not selected by me). Changing Keyboard to English - which I haven't - does not work on the fly. And is in general not a good solution. You should support spelling check in any language, regardless of the keyboard you are using.