Unfortunately, the Google Pixel 3 XL has its fair share of bugs and glitches. However, one such problem will soon be patched in an upcoming update. The Pixel 3 XL buzzing issue as first noticed by Reddit users will be the center of Google's latest patch for the Pixel 3 XL.
The issue is similar to that of the Pixel 2 XL where some models suffered from a buzzing noise. At that time, users were advised to seek a replacement. However, with the issue on the Pixel 3 XL, a replacement does not seem to address the problem.
A Google rep reached out to Android Police to confirm that Google is aware of the issue and are working on a fix that will be released soon.
I’ve checked with my resources and we will be rolling out a software update in the coming weeks to address the audible buzzing in certain instances at lower volumes. Please be assured, this issue will be fixed in coming updates.Android Police
Other issues that have struck Google's Pixel devices (some of which have been or are soon to be patched) include: