Multiple simultaneous volume backups that stop the container?

[subdigital]

I have a plausible analytics app deployed that I want to back up. I'm using the volume backup feature to back up the 3 docker volumes that come with this application. Ideally I'd like to stop the container and run all three at the same moment, so I have these running at every day at 12:12 AM.

But it's not clear to me that this would actually work (i.e. would the first one stop the container and the other 2 fail because they couldn't stop the container?). That makes me wonder if I should stagger these somewhat. What's the best practice here?