Phased roll out as has been every single Nokia 8 OTA patch since day one. Sometimes you are at the front of the queue and sometimes you are at the back.
The rollout didn’t get suspended. But as most of our updates this camera update is going out in waves and so may take some time to reach everyone. Be assured you’ll get the camera update it just might take some time.
No one can tell you, it happens when it happens, there isn't a selection process.
Until Sunday June 3rd I didn't get any update on my TA-1012. Read in this forum, that switching to other SIM card would trick the OTA. I inserted an old and expired Indonesian SIM card. OTA was immediately downloading. If I changed the SIM card during the download or install process, it stops immediately.