When it comes to sharing games between PlayStation 4 and PlayStation 5, there are a few things you need to keep in mind. First and foremost, both systems have their own storage space, so you don’t have to worry about taking up too much space on your hard drive. Secondly, both systems support cross-platform play, so you can play games with friends on either system. Finally, be sure to make sure your PlayStation 4 and PlayStation 5 have the same software updates - this will help ensure that your games are up-to-date and working properly.