White supremacy: darker skin tones tend to photograph worse than lighter skin tones. Laptop webcams are notoriously crappy and can make this effect worse. Is this white supremacy or physics? Can the test instructions be modified to ask all users to have an appropriate lighting setup (ie lit from above and from the side to ensure that your face is foregrounded properly)
Ableism: for users who require assistive technologies, is it better to take a test in their own space with their own equipment or to travel to a test center and use shared lab equipment? For users with mobility challenges, is it better to be in their own space or travel to a potentially non-accessible testing center?
Sexism: for working mothers, better to take a test in your own home or travel to a testing center and arrange for child care?
Two "isms" seem more relevant but weren’t mentioned: ageism - because fuck boomers, right? Socioeconomics - not everyone has access to a PC that meets the specifications or can acquire one on short notice.
Lots of context is discarded when one engages in polarizing categorical rhetoric. I’m not here shilling for proctoring software but rather for nuanced discourse.