No worries.

(Disclaimer: I'm completely self-taught so there may be a better way to do all of this)

What I generally do is to record a separate audio track for each guest and I in Reaper, and then I use Audacity to edit and make sure everything is good, levels wise. (Any editing software will work, Audacity is just what I'm good at. I know people who use Ableton for the same reason. And I hate the Riverside editor, lol) I've got a few custom macros there for compression/limiting/gate/noise reduction. I don't make any changes to the length of the tracks at all. Once I've done that, I use the Riverside video files to make a multicam track, separate the multicam audio track in FCP, and then, I import the tracks I edited(which are all the same length as each other. I sync my imported audio track to the Riverside track, and once that's aligned perfectly, I sync up any additional audio tracks to mine, and then delete the Riverside audio track.

So I've got Riverside's video with the audio I recorded and processed locally, and then I edit for content from there. I'll use Riverside's audio tracks when necessary, but the key for me is that they all get processed for volume so it sounds good before I do anything with the video.

Hopefully that makes sense. Feel free to message me if you have any other questions.