Correct, coat and cardigan on and off all that is needed for many reception classes. Milk and biscuits here after school. Then cooked meal later- despite them all having had a cooked lunch. Chat about the day- some days get full commentary other days nothing. Bit of quiet playing, TV, board game anything that requires little effort. You reading child a story good, you trying to get them to read likely to be bad, unless they want to impress you with new skills. They are all different though. Won't necessarily be tantrums and exhaustion. Many are totally ready and very happy. Mine have been tired but not excessively so. No 6 o'clock bedtimes for sure.