For the June 2023 exams, do we have to remember any equations as I heard that we have them all on the equation sheet?
You would have a set of equations/formulae provided to you. The others you will need to remember. Having said that, you need to be fluent enough using the formulae that you would practically know them off by heart in order to get the top grades anyway. Do not try to rely on the equation sheets provided in the exam; and only use it as a way of checking as opposed to a reference (doing so implies you haven't revised enough).