My team was mindful of balancing the ability to collaborate on important design decisions and assigning work that could be done on an individual level.
We did this by working through information architecture and user flows together and then building out specific screens on our own. Once we had built out our wireframes, we were able to show each other our work and receive feedback in order to continue iterating on the design.
I went through at least three different iterations as shown below. Additionally, while I was not responsible for designing the questionnaire screens, I played a significant role in reviewing the UX copy as the only native-English speaker on the team.