Q. Is this really as harmful as you think?
A. Go to your parents house, your grandparents house etc and look at their Windows PC, look at the installed software in the past year, and try to use the device. Run some antivirus scans. There’s no way this implementation doesn’t end in tears — there’s a reason there’s a trillion dollar security industry, and that most problems revolve around malware and endpoints.
As a species we have invented something called “indexes” that solve exactly that kind of problem. We actually have an entire field of science called information retrieval, that doesn’t require screenshotting your whole life to produce the same result.