Additional features, settings, or issues not covered by specific Microsoft Teams categories
Dear Matt
Good day!
Thank you for posting to Microsoft Community. We are glad to assist!
Based on your description regarding "No longer able to increase font size in MS Teams". After thorough research and testing, I found that you are definitely right, I reproduced your issue at my side. If you are referring to the zoom feature, you can try holding the Ctrl key on your keyboard while using a mouse scroll up/down to change the size of the font in the teams app.
Also, if you have the organization admin permission, you can also raise a service request to report this symptom to our online channel through the O365 admin center. A support agent can further connect with you remotely, for further troubleshooting and involve the backend team where need be. Get support for Microsoft 365 for business -- Online support. I will also revert back when I get more info on this. Your patience and cooperation are much appreciated. Have a nice day!
Alternatively, you may also provide report to our dedicated Teams developer team directly via in app feedback site Microsoft Teams · Community Microsoft is committed to enhancing the customer experience by continually examining suggestions to include in the design and development of future product upgrades based on your suggestions.
Please note that nobody here are the product developers/decision makers and has no control over the product. Everyone, including us as community moderator, can only assist you on the query for providing available solutions and feature's availability status within our scope and capability.
Your patience, understanding and cooperation are much appreciated. Thank you for your precious time. Have a nice day.
Best regards,
Inema |Community Moderator