how to apply spell check in new Outlook

thank you - i got bored and switched back to classic outlook - im sure Microsoft will iron out these kinks by the time we all need to switch

Actually, I found this chat:

Greatly appreciate your patience and understanding while we were checking on this.

1. With regard to Pin feature. 

Are you facing the issue with the Gmail account setup/ added in Outlook on Mac?If yes, please sign into the email account using- www.gmail.com , see if all the Sent emails, Inbox emails, etc are available on webmail (server end). If yes.Please remove and re-add the email account by following the steps below and see if it helps.1) To remove the email account.Click on Tools menu at top, Accounts, select the email account, click on (-) sign, Sign out or remove/ delete or remove from this device.2) Then restart Outlook once.1. Navigate to Outlook menu bar at the top of the screen.2. Click on "Tools" menu at top > "Accounts"3. Click on the "+" sign > New account.4. Type in the email address and click on "Continue" > (Do not click on the "Not Google?" on the top right of the next window which appears), just follow onscreen steps to add the account. See if it helps in fixing pinning the emails issue.2) With regard to spell check issue.Please try the steps below and let us know if that fixes the issue.For current email only:1) Select text (this is important)2) Go to "Edit" on a Menu bar >> "Spelling and Grammar" >> "Language" >> select desired language.For all emails:1) Select text (this is important).2) Go to "Edit" on a Menu bar >> "Spelling and Grammar" >> "Language" >> "Language..."3) Select the desired language from the list and click "Default..."Click "Ok" to confirm. See if it helps.If you still face the issue, then we need an Incident ID to check further, when you face the issue, please click on 'Help' menu at top, Collect diagnostics and share the Incident ID. 3) With regard to Translator add-in. 
Please install the latest Outlook update 16.83.1 by first, opening the following link - https://docs.microsoft.com/en-us/officeupdates/release-history-microsoft-autoupdate  Under March 2024 release, click on 'Download Microsoft AutoUpdate 4.69 Package' link, install it.Then open the following link- https://learn.microsoft.com/en-us/officeupdates/update-history-office-for-mac Under March 19, 2024, next to 'Outlook', click on 'update package'.

If you are unable to install the latest Outlook update, then please open the Mac App Store from your Dock or Finder > Click 'Updates' on the left side menu then click the 'Update' button next to the Outlook app and see if it helps in fixing the issue.

4) In Word application, in the Recent file, since documents disappear. Since this support channel is only for technical issues with Outlook application on Mac. As we are not trained on Word application issues.

Please refer to the following link to reach the Word application support team to get assistance on your concern- https://support.microsoft.com/en-us/contactus/Also, you can get the right phone number from the following link to reach the phone support and can check with regard to the issue- https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2 Greatly appreciate your understanding and co-operation.

Keep us posted on the outcome. Thanks.

If you open a chat with Microsoft and describe your problems, they will respond with things to try - including updates with links. It solved some of my problems.

It seems the problems are indeed solvable. I would copy paste the solutions but the chat has disappeared. But, in short, go to help in Outlook and they will provide solutions which includes updates. For now, I appear to have solved, with their help, spellcheck for emails and translate ****-in now working.