I think I have something like 450 odd days of sea time that aren't part of a named deployment. Honestly that was more work/riskier than the other 200 days for the Op Reassurance and NATO time; the ships sail in a better repair state for deployments with more people, where you will limp out with a minimal crew for the rest.
The times I've been genuinely worried were always 'routine standard readiness' type sailing from A to B, (like when we spent several days on a single generator caught in a major storm during an Atlantic crossing trying to get another one going). Conversely for the NATO we left with everything meeting/exceeding SOLAS and enough people and time in the schedule to do maintenance (actually hit 100% for a while, which made us a unicorn).
Similarly you are trying to get ready to go with a portion of the crew so it's nuts to prepare for as well. People who have a high portion of their sea time on HR ships actually have it easy in comparison (for most trades). Wander down to a ship trying to reactivate after a DWP with a skeleton crew and see what I mean; hard to get IPMS up and running with no IPMS tech, and can be a fight just to keep the hotel services running.
RIMPAC is a pretty typical example of a long sail with no medals attached where the ships aren't at full high readiness, and there are a few equivalents on the East coast where you will be gone for 2-3 months doing exercises with the USN or the UK. Know a few people who had the gold medal but a similar lack of medals; some people are just always bridesmaids that spend a lot of time sailing without a deployment.