I'm facing the same issue on my Pixel 9 (SKU: GUR25). A factory reset didn't help, and flashing back to the stock OS didn't help either. The symptoms are exactly the same as those described in this thread. I also asked for help on a Russian forum (4PDA), and some users there reported the same issue on their Pixels. Interestingly, this issue also affects users who have never flashed GOS before.