I've got your back, @stephanie-dupuis. I can help with locating QuickBooks Community messages.
You can access messages that have been sent to you by selecting the Envelope icon in the upper right portion of your screen. I've included a screenshot to serve as a visual reference:
That's it. This information will get you where you need to be.
If you haven't seen it yet, I recommend the QuickBooks Blog. Here you can read about new features and updates for QuickBooks Online.
Please let me know if you should have any further questions. Take care.