I think you're right, to some extent. But these questions are a little more concrete than something like, "is the economy better or worse than four years ago?" These questions are about information, not vibes.
I think it's also important that some of these are claims that the GOP has been lying about. Not just saying, "we'll makes streets safer" but claiming that crime is at an all time high and that the Dems (who are in power) will crash the markets.
@ZachWeinersmith This data presentation conflates two issues -- (1) was the most recent election won based on misinformation, and (2) are Republicans more detached from reality than Democrats.
(1) It would be useful to have percentages of the electorate that got each question correct/incorrect, and not have to infer from outcome.
(2) You are right, this is a one-sided view that does not answer the question. But the answer is yes, extremely. Here is one look at that: https://www.briefingbook.info/p/asymmetric-amplification-and-the?publication_id=1002034&post_id=138749341