Should I check whether students can stay on campus comfortably for long days?

Yes, it is worth checking. Classes, laboratory work, and extracurricular activities may make some days long, so look into study and rest areas, places to get food and drinks, seating, air conditioning, ease of getting around campus, and how these fit with your commuting time. Because facilities and their usability vary by university, faculty, and academic year, confirm the details through official information or an open-campus visit.