Honestly, regardless of their education and experience, if you have this concern about a person, you should get a new roommate, assuming there’s more to your question than just a hypothetical.

All the time, there are shitty significant others who install a keylogger or screen recorder to monitor their spouse, because they’re fucked up. A lot of the time, they don’t have any technical background, and are the equivalent of script kiddies. They do this because they’re shitty people, not because they have a degree in computer science.