Google has invested heavily in sound management in their rooms, and issued noise cancelling headphones to everyone awhile back they got to take home. That might explain some things.

But isn't Google Meet's background noise cancellation far superior to that of Zoom's? Or maybe I misunderstood your comment.

EDIT: I see above that others have claimed the opposite, but my experience has been different. I simply cannot take a call from a cafe in Zoom without complaints, but Meets is regularly tolerable, according to those I meet with.

If you use Zoom & Google Meet in the browser, the audio processing is likely pretty much the same (most of the filtering is built-in to the WebRTC stack). Zoom's native app has noticeably worse audio, but pretty much everything about it is worse anyway — it's just a pity you have to click through the "download the app" dark pattern to get to their better browser experience.