That sounds fairly complicated to test, given that it's location dependent and carrier dependent.

It does sound like multiple people caught this, though:

> In case you’re wondering, this isn’t a problem with my particular unit because I’m not the only one to have expressed concerns about it. Marques Brownlee has already mentioned it in his Pixel 6 second-try video, my friend Cameron Summerson talked about it, and people are complaining about it on Twitter, Reddit (1, 2), and the Google Support forums (1, 2, 3).