There is no such thing as "every day user" though, every user is different and if anything a major source of those UX issues people have is "designers" who come

There is no such thing as "every day user" though, every user is different and if anything a major source of those UX issues people have is "designers" who come up with imaginary "every day users" (usually to justify their own preferences) instead of performing actual usability tests on real users (and accepting when their ideas are bad or wrong) or just sticking with things that we already know that works and perhaps tweaking them (but again accept when they screw up and users say so and revert their changes instead of doubling down on them).