Welcome Ryan-Vázquez,
To clarify, are you using the internal microphone on your MacBook Pro or is your display equipped with a microphone? We suggest verifying the sound input settings:
1. On your Mac, choose Apple menu > System Preferences, click Sound , then click Input.Note: The options that appear depend on your Mac model and the audio devices plugged in to your Mac.
2. Select the device you want to use in the list of sound input devices. All sound input devices available to your Mac are listed. If your display has an internal microphone, it’s listed as “Display Audio.”
3. Do any of the following to adjust your sound input settings:- Adjust the input volume: Drag the volume slider.If you’re recording sound through your computer’s sound port, you can adjust the input volume to compensate for the sound source being too loud or quiet.For example, if you’re recording loud music, lower the input volume so the recorded sound isn’t too loud or distorted. If you are recording someone who is speaking softly, increase the input volume so your Mac can better capture the person’s voice.- Capture less background noise when using your computer’s built-in microphone: Select “Use ambient noise reduction.” This option does not appear if a 4-channel built-in microphone format is selected in Audio MIDI Setup, on Mac with Apple silicon, or on Mac models with an Apple T2 chip.More details found here: Change the sound input settings on Mac
Also, are you using a specific app for your meeting? Do you experience this issue when your external display is not connected? Having this information will allow us to look deeper into this issue. We suggest checking out this resource as well: Connect a display to your Mac
Cheers!