How difficult is technical Japanese compared with everyday Japanese?

It cannot be said categorically that technical Japanese is harder than everyday conversation. Engineering Japanese may require reading specialized vocabulary, kanji, and texts that include formulas, as well as understanding concise explanations accurately. Terms and phrasing may also recur within a field, so learning them alongside relevant background knowledge can provide clues for comprehension. Difficulty varies with the field, course content, Japanese ability, and background knowledge.