@mikesky is probably the best person to ask, but I can say that we have a build submitted for the mainland store, but it seems to be stuck in a review. Similarly, I don't think we have the ability to test on mainland HW. (The Pico version on Github is the non-CN build, fwiw. There is, to the best of my knowledge, no difference between the two besides for disabling login to Google/Sketchfab)