Nice, thanks for the bug report! I have made in issue in the stopwatch repo: https://github.com/AsteroidOS/asteroid-stopwatch/issues/13

We have implemented a wifi toggle in the quickpanel with 2.0. But the wifi credentials still need to be entered into connmanctl on the cli. As soon as you got wifi set up and connected, you can already now sync weather data usin asteroid-weatherfetch. But right, wifi usually uses up to 30% more power and should be enabled selectively.

For the postmarket question, yes, it is our longterm goal to mainline watches, which we are sort of doing in coorperation with the postmarket guys. But thats a humongous task and part of the idea of this 2.0 release is to interest capable contributors to push things further ;)