The whole situation makes me as a job seeker even more paranoid. I had an initial interview scheduled over video but I had a power outage and had no choice but to use my phone. It's the dumbest coincidence ever and hasn't happened again, and if it makes me look suspicious, so be it. For some reason none of my phone cameras worked with Google Meet because Google engineering sucks and the interviewer kept asking me questions why my camera was off. I answered honestly that I had a power outage and this was my only device I had available on such short notice, that Google Meet wasn't working, etc. I even talked to the hiring manager half an hour over schedule since we clicked so well, submitted my code exam but was rejected without any explanation.

Because I got no explanation the potential reasons for my rejection rolled over in my head. I finished the exam to the best of my ability - was my ability just not good enough? If I went to e.g. the library or something to hunt for a station with webcams in time would I have not come off so suspect?

Since then I've gotten no other interview offers elsewhere and feel like a moron for blowing my one chance last month over such a stupid coincidence, if it really was the case they rejected me for thinking I was some kind of corporate spy. It really was the definition of "too good to be true." I will now pay way more attention to how I appear to the interviewer from now on, and carry extra devices/webcams in case the worst happens.