I work in hospitality and our systems are completely down. No POS, no card processing, no reservations, we're completely f'ked.
Our only saving grace is the fact that we are in a remote location and we have power outages frequently. So operating without a POS is semi-normal for us.
I had a cis major and I didn't have issues using Linux all that often. One class we had to write code in VisualStudio, before the Linux version existed. My professor was fine with me using my own IDE as long as the code compiled on Windows, which it did after adding about 3 lines of code to the start.
If we had shared documents they went in Google docs, and libre office, (open office at the time) docs were exported as PDF before submitting. I also had a Windows 10 VM ready to go just in case, but rarely used it.