Got translated and apostilled copies of everything before we left, vaccination record included, purely on a friend’s advice. Glad we did given how long official translation ended up taking.
The school asked for a vaccination schedule that doesn't map neatly onto the one from our home country, plus translated records we didn't have ready. It held up enrolment by weeks. What paperwork did you wish you'd gathered and translated before you arrived, rather than scrambling for it after?