Assalamoalaikum
when we read 4rakah fard salah,should we be reading any surah after surah Fatiha in every rakah or just read in the in the first two rakah only then read surah Fatiha in 3rd and 4th rakah irrespective of whether we are reading with jamat ie reading behind the Imam, or reading at home alone. Or there are different rules to follow when we read with jamat and when we read alone.