I got my results via one of the centralized apps.

As far as I know, if you test positive right now, you’ll be taken to a big quarantine center where you’ll stay until you can test negative twice. Like AlyxMS said, the policies are all over the place - I also heard talk about letting asymptomatic cases being allowed to quarantine at home but since then all the talk has been about the big centralized quarantine halls.

If you’re interested, there was a foreign journalist called Emma Leaning I think who tested positive and was tweeting about her experience in centralized quarantine.