The AirPods Pro are plagued with issues. There are firmware issues(Sorry for linking to Medium.com) with the noise cancelling and other software (or hardware?) issues resulting in clicking or buzzing devices.
So far I was mostly able to enjoy the latter ones and after getting the left AirPod replaced for clicking noises it was time to replace the right one for buzzing noises. That was easier said than done as the I couldn’t enter the support chat with my serial number for some reason. As usual I’m not the only one with that problem.