Current student here (CS, so sadly not in your field):
In my case, college/university actually made sure, I and many others would be using Linux as their main system. The computer lab is using Linux (Ubuntu 22.04 mainly) although Windows machines (mostly for beginner courses) and Macs (for stuff like Final Cut Pro and other Apple exclusive software) are available and many courses are either requiring or putting mainline support towards Linux.
Document wise - we were taught LaTeX from day 1 and are expected to have at least the knowledge to utilize the given .cls files. Sharing documents is rather a free-for-all: When LaTeX is required for the course, either Overleaf or the university git is the choice for group-work, otherwise there aren’t requirements for using .docx files or other files.
Hope I could give you an insight, although not in your field.