The thread link points to the fixes and enhancements brought by the December update. At the same time there's also a feature drop for Pixel devices, a summary of which you can see below:
For now, Video Boost seems to be exclusive to the Pixel 8 Pro despite it being done on the cloud.
I feel like that has to be where it expands to next. It seems like this is a way to add a feature to the pro model in order to justify the cost difference.
The OG pixel watch supposedly syncs bedtime mode with pixel phones now. Anyone know how to activate it? Just tried after updating my devices and it doesn't work.