From my experience, the culture among the students is very collaborative. We all share resources, notes, tips etc. We don't have very many "gunners" who are only looking out for themselves and refuse to collaborate. I think a lot of this is due to the P/F nature of the first 18 months, but also (at least for my class) the majority of the students are just good people, and for the most part we genuinely like each other, which makes it easy to get along with each other. This will vary by class, but I think it mostly holds true for the classes immediately above and below mine as well.
The day-to-day for preclinical years is probably very similar to most schools. There are (almost) daily lectures, which are recorded but attendance is not required. Those who attend in person really enjoyed it. Those who watched lectures on 3x like myself, found the lectures to be tolerable and not full of extraneous PhD-level nonsense. The vast majority of the lecturers are physicians, so they really try to keep you clinically focused which is really nice. The non-basic science lecture material (MAPS/ICRIT/Clinical Skills) vary in terms of utility in my opinion, but the school is intensely interested in feedback from current students, and they are constantly changing the curriculum and courses in response to student feeback. For a small example, our class was given Firecracker as a free resource by the school to use for block exams and step studying, but many of us opted to pay for USMLE-Rx instead, so the school dropped Firecracker for the following class and bought them USMLE-Rx instead. They really listen to feedback and implement changes. My personal advice is that most schools probably have a similar workload/stress level in the preclinical years, so look for schools that actively seek out ways to make their students' lives easier, which in my experience, Wake does a tremendous job of doing.
As far as outlets for the stress, it depends on what you're looking for. There are outdoor things to do nearby. Downtown, while small, has a surprisingly robust selection of local breweries. There are some real restaurant gems in/around Winston. There is a relatively large arts scene in the city. There are 3 therapists on staff, who are available at any time throughout your entire stay here and are all wonderful. In my personal experience, the biggest release came from making friends and spending time with them at night and on weekends.
Hopefully that helped. I've really enjoyed Wake so far. I think its a great program and a true hidden gem.