It is possible to make the website think I am using chrome and windows, but I don't want to get in trouble for cheating. Even if I use degoogle Chromium it still won't allow me because I use Linux.
I don't think any privacy focused person should use a proprietary operating system. This is another example.
https://www.nzqa.govt.nz/ncea/ncea-exams-and-portfolios/external/device-readiness-check/