The Advanced Hardware Support Team are currently requesting only for phones that are in EDL mode. While the issue tracker has become a graveyard for phones, the particular focus of the engineers are Pixel 3/3 XL phones entering EDL after an OTA update.

If you have had this problem, please star the issue ticket and add a comment about your circumstances.

Some technical explanation about EDL mode is couple pages into the xda-dev forum thread: https://forum.xda-developers.com/t/fix-pixel-3-qusb_bulk_cid...

A reddit post that lists just about all the reddit posts at the time on this topic: https://www.reddit.com/r/GooglePixel/comments/ongj1j/a_remin...

Some additional news stories on this:

https://9to5google.com/2021/09/01/some-pixel-3-devices-are-g...

https://www.androidpolice.com/phones-devices/google-phones-d...

https://www.phonearena.com/news/pixel-3-and-pixel-3-xl-model...

https://www.extremetech.com/mobile/326636-something-is-brick...

https://slashdot.org/story/21/09/03/019201/pixel-3-and-3-xl-...