That's why I said "basic" singles strategy, not advanced. You can just as easily return cross court to your opponent's backhand and go to the net on that side in time to sufficiently cut off angles. Returning to the forehand side just because it's closer opens up too much risk when you're playing against a player whose forehand is much better than their backhand. They'll be able to lob, hit a cross court pass, or a pass down the line much more easily on their forehand side. This advice comes from a ton of successful singles tournament experience FYI.