Configuring preferences and options in Outlook on the web for business
Dear VTThomas,
Good day.
After thorough research, testing from my end, and consulting, it’s been concluded that there is no setting in Outlook or Chrome that allows you to change the spellcheck feature back to right-click. This is a design choice made by the Outlook team to improve the user experience. However, you can still access the spellcheck feature by using the keyboard shortcut "F7" or by clicking on the "ABC" icon in the formatting toolbar.
We apologize if we are not able to meet your requirements; however, thank you for bringing this to our attention, we will surely raise your concerns to our Product Team and hopefully this can be included in future updates. In the meantime, we recommend using Outlook PWA in the Microsoft Edge browser, to avoid some issues and be supported by our team easily. For other concerns, please do not hesitate to add your post in the Microsoft Community Team. Thank you for choosing Microsoft as your partner in business.
Sincerely, Eben Ezer Tres | Microsoft Community Moderator
If that is true then the Outlook team failed to understand that eliminating this feature does the opposite of improving the user experience. This was a bad decision. Bring back the right click to correct spelling and grammar.