I feel significantly more stressed while taking an exam with webcam. I don't cheat-- I don't _need_ to cheat, and yet still feel more stressed on these exams because of how many things can go wrong. When taking math-heavy exams I would frequently get a warning from the software that my face was not in view... because I was working on my paper.
I think professors caught on. Using LockDown seemed to fall out of style somewhat for my second semester. In classes where there was no monitoring software, exams felt easier just being allowed to take them in a comfortable environment. I don't have to think about keeping my eyes 100% on the screen the whole time and I don't have to worry about my laptop crashing or internet going out-- I can tether if I need to. Being able to listen to music during exams was just a cherry on top.