I don't read that many isekais so maybe I'm missing the forest for the trees, but there's something I find unsatisfying about the protagonist just being able to constantly whip out functional information that works without iteration or issue. One of the impressive things about our society -- that is both a benefit and a curse -- is that there's so much specialized knowledge that keeps everything running that no single person knows. Hence the fear and common theme in many stories of, "if it all stopped and wiped clean, would we be able to restart?"
He knows all this just from working at an orphanage and watching tv? Obviously he was an adult, but if he worked in the agriculture industry then I'd have no issue, but they seem pretty sparse about who he actually was and just go, "he seems to know everything about everything" and waste no time on it, and he has no real issues.
They have minor snags, sure, but nothing anywhere near failure or confusion or being completely at a loss. Without that struggle, it just feels fake? Like I can just skim through the text because it's just going to work.