[gucci-on-fleek]

The December updates for Pixel 7 and Pixel 7 Pro are available to manually download on Google's website [0], so the updates do exist, although Google might not be rolling them out to the general public quite yet. But the December update for Pixel 7a are completely missing from that website, and trying to update from the Settings app also shows no updates available.

[0]: https://developers.google.com/android/ota

[fulafel]

Is there a way to apply one of these manually (without getting into dev tools and wiping & flashing with the new image)?

[gucci-on-fleek]

There are instructions at the top of the link. You need to use "adb" from the command-line on a computer, but it won't wipe any of your data, so it shouldn't cause any data loss. If you don't want to use "adb", you might be able to use [0], but I haven't tested it myself.

[0]: https://flash.android.com/welcome

[JohnTHaller]

The 7a got a November update while the 7 and 7 Pro did not. Perhaps that's related to the delay.