Our FB group for our Ovation cruise 2 weeks ago had lots of people posting that they tested positive after the cruise. Many said that they never took elevators, sanitized their rooms, did not go to crowded shows, wore masks whenever in a public area etc, etc yet they still caught it.
Us, we all tested negative after the cruise and did not do anything different than we did when we cruised in 2019.
If the virus is going to find you it will.