Microsoft implemented Xbox backward compatibility by allowing select Xbox 360 and Original Xbox games to be played on Xbox One and Xbox Series X|S consoles4. They improved the games' resolution, added Auto HDR, and introduced FPS Boost for better performance. These enhancements aimed to improve the games' look and feel while preserving their original playability3.
The PlayStation 5 is rumored to be working on proper backward compatibility for select PlayStation 3 titles. This would allow players to purchase and play PS3 games individually on the PS5 console without requiring a PlayStation Plus Premium subscription for cloud streaming. However, it is uncertain which games will be selected for compatibility and if they will receive performance or visual improvements.
Yes, according to the rumors, the PS3 titles that will be compatible with the PS5 will be sold individually, similar to how Microsoft handled backward compatibility with Xbox14. This would allow users to purchase and enjoy specific titles without needing a PlayStation Plus Premium subscription, which is currently required to access PS3 games via cloud streaming. However, it's important to note that these are just rumors and we should wait for an official announcement from Sony to confirm.