That’s all very vague, what specifically do you think people wouldn’t know from online work?

Someone studying math online could be speaking to many more people through video calls, online forums, and get exposure to many professors through different videos.

You can ask “why am I learning this?” during an online class, and in-person work can be textbook heavy.

If there’s something specific people need to know, it should be tested for. The vagueness around what problems online courses have seems to be an excuse to preserve a system that is inaccessible to the majority of the population. Only about 40% of the population ever gets a bachelor’s, and many of those are online already.