Damn, it may be time for me to move back to Android. Do Pixels require the updates to be sent by your carrier, or do they allow direct download?
https://9to5google.com/2023/01/12/google-pixel-t-mobile-upda...
My daughter's Pixel 5a update, for example, was delayed but it was purchased from Google.
To be clear, the update _does_ come directly from Google but the device won't show that the update is available until the carrier gives the green light. The factory image can still be sideloaded.
The P7P is the first phone that I've not purchased outright, and that's because TMO was willing to give me a ridiculously generous offer to trade in a OnePlus 7t.
edit: another link -- https://www.androidpolice.com/pixel-t-mobile-update-delayed/
You can also just update the phone using the OTA Google provides on a page and ADB to side load it.