The interesting thing is that cheating is much easier when done online. When I was a TA and we were in the process of moving quite a bit of the classes to online, we still mandated in person testing.

It was eye opening to find cheat sheets and other cheating materials obviously left behind by students. The majority of the stuff we'd find we either inaccurate and completely wrong. Like a half awake student copied something they thought was the right equation or solution, when in fact, it was for something completely different that wasn't on the test.

So I agree with your notion, but its one thing to try and cheat. Its a completely different one to do so successfully.