I tried a whole host of things: disconnecting-reconnecting it back, using other headphones, testing with other devices, etc.
The issue was that no matter what I did, Discord couldn’t pick up what I say into my microphone. It was also fully charged so that wasn’t the issue also. The AirPods were connected as I could see it being indicated on my PC. Until… I tried connecting my AirPods and started to speak into it. Now I was using my Apple AirPods as the Bluetooth headphones and I was expecting that everything was to go smoothly. It was just the other day, I opened up my Discord and I needed to call up one of my mates.