iMovie is a free video editing software that comes with your MacBook.
Some people have used it for Chapel Videos, Choir Recordings, Animated Slideshows, Tutorials and more
OBS / Open Broadcaster Software is a free open-source software for recording and live-streaming. An easy way to plug in cameras, screens, microphones, and record a video or stream to YouTube, Facebook, Zoom, Google Meet, or other
Open Quicktime Player
Under the File menu, select New Screen Recording.
From the toolbar, go to Options and make sure the microphone settings, file save locations, and record delay are as you want them
Start Capture
When finished, click the end recording button, on the top menu bar.
File should be saved under the location you have selected
Start the presentation mode of your software of choice
Open Game Bar either via the Windows Menu or the Keyboard shortcut (⊞ Win + G)
Make sure microphone recording is toggled on. (⊞ Win + Alt + M)
(You might have access to your microphone disabled. If so, go to Settings > Privacy > Microphone and enable microphone access for the Xbox Game Bar)
Hit record (⊞ Win + Alt + R)
When finished recording, click the end record button or ⊞ Win + Alt + R)
Files will be saved under Files > Videos > Captures