That can be applied to most hobbies in general. Not using an automated coffee machine? Time worth nothing. Cooking rather buying takeout? Building your own pc rather than buying prebuilt? Drawing rather than generating with AI? Time worth nothing, that’s why.
It went great. I mostly had to submit files in PDF, which allowed any office software to work perfectly.
That is until covid came around and I had to do proctored online exams. The proctoring software doesn’t support linux.