Is there a bug database where customers can check for open issues on a per app basis?
Would be handy to avoid having to report things here that are already known, and get any applicable status.
No, there isn’t. But you can search the forums here, and you will find about everything.
The only really annoying bug right now (as far as I can tell) is the “remote access stuck at full quality” bug. It is still being worked on.