Change Spell Check Language Teams
There are multiple items about this on uservoice though go.
Change spell check language teams. Click the spelling grammar arrow button and select the set proofing language option. Preference reference for acrobat and adobe readeralternatively might. Select your profile picture at the top of the app then select settings general and go to the language section.
Haven t done it myself but see if one of these prefs work. To confirm the selection click yes. A feature would be to set the autocorrect language per chat thread.
The product group are working on a long term solution to the spell checking feature which may involve using different dictionary sources. Click or tap where you re going to add text or select the text that you want to mark as a different language. The browser teams client will spell check any language configured supported by your browser windows.
Selecting your preferred language and region also updates your time and date format. Select the language you want to use. On the review tab select language set proofing language.
And also gui language seem to reset to system language when restarting teams at least on windows 10. Click the ok button. I see what you re trying to do now.
Then click the ok button at the bottom of the dialog box. For the teams app things are not as pleasant unfortunately. Spell check and language detection for norwegian and english.