I think based on ur information, it’s really consistent and widely spread out, which, in my opinion, is extremely important. I don’t really know the competition level for Public/Global Health, bu tin general science and computer science at UW are extremely competitive majors. One thing I do want to say is that both ur majors are pretty popular these days, but I think you do have a good chance of getting in! You got this!
For me, I also applied to UW, but I’m not into STEM, so my first major was communications, and the second was drama. These both interest me, but also they’re not STEM majors, so it might be easier.