Assume you are in compositor mode and you have a video as an input source. The audio isn't immediately played along the video. Usually I re-import the video in VSE mode again and strip away the video information.
1st question: is this the intended work flow to add audio?
A problem that comes from this is, that once you have a scenario where audio and video are out-of-sync it is nearly impossible to sync them. This is because switching between compositing and VSE mode doesn't allow to adjust the audio easily.
2nd question: how do you guys sync your audio?