Tennis Federer Serve

tennis question please: Advantage for being left-handed?
I’ve read on the newspaper that Federer had wished he could be left-handed While playing with Rafa. He said that Rafa has a great advantage while serving for being left-handed. I’ve never played tennis but I wonder what makes the difference if the court is symmetric and they serve one time on each side.
well, if the other person is a lefty
the stategy you use to verse them will be completly different
eg. most people have their backhand as a weakness
if you forget that the other person is a lefty
and you do that you will be hitting straight into their strike zone and youre screwed
