Chrome PWA Switch Camera

I just attended my first meeting using Zoom for Chrome PWA. The application defaulted to using the 'back' camera on my device (Samsung Chromebook model XE520QAB) despite all of my default settings being set up for my front camera. When I click on the camera icon along the task bar at the top of my screen, I can see there is a drop down menu for me to theoretically switch cameras but it is grayed out and I am unable to make the choice to switch cameras. I can't seem to find another avenue to force it to switch cameras to the front facing one right above my screen, no matter how I approach settings in the app or on my device.

Please help! I can't go an entire semester with my classmates and colleagues being forced to stare up my nose.