Thanks for following up with us, jkaands. It's appreciated. We're sorry we weren't clear regarding the macOS your Mac is currently on. We do have one more step to try.
How to use safe mode on your Mac - Apple Support -- Restart your Mac in safe mode and see if your Mac speaks what you type. After you've tested, restart your Mac normally and test once again.
Be aware that when you start up in safe mode, your Mac prevents some software, such as startup items, from loading, and it performs a check of your startup disk. Your Mac may take longer to start up because of the check.
Let us know the results when you're able. And we would like to confirm the macOS your MacBook Pro is currently on. You'll find the information under > About This Mac.
Take care.