The f7 square is widely considered the weakest point on the board for black. It is the only square that is not defended by any of the minor or major pieces and it is a pivotal square that protects the black king. For this reason, many traps are formed to attack this square and why black should always be looking out for any attacks on the square.
Keep in mind that your middle game strategy might change depending on the opening. If you opponent puts pawns on d5 and e6 then you will not have a clear path at the f7 square with your bishop like you would if those same pawns were on d6 and e5.
You should note that those players that start with e4 will usually get to attack the f7 square much more than those players that start with d4. This will be covered in the video.
Watch the video below for a detailed explanation along with multiple examples.