It’s definitely a minor issue, but something I wanted to point out. Through our testing of backwards compatible games, we discovered that a few PS4 games don’t run as intended. This only happened to a handful of games, including Assassin’s Creed: Syndicate, Ape Escape 2 (unbelievable, I know) and 2006’s Prey. All three of these games indicated that ‘You might experience unexpected game behaviour while playing this PS4 game on your PS4 console’
Assassin’s Creed Syndicate had lighting issues, Ape Escape 2 had weird texture issues from the start screen and for some really bizarre reason, I couldn’t get Prey to boot at all (it’d just get stuck on the loading screen). It’s worth noting that Sony deems this not to be the final operating system, so we could see changes at launch, but these have been our findings so far.
We understand that this is due to the fact that the PS5 is running PS4 games in a Boost Mode that can’t be disabled, so these games (and I’m sure there’s a small number of others) could likely be fixed with the option to turn this off or by the developers patching the games.
The vast majority of games run and run better, but it was definitely worth mentioning due to Ubisoft’s recent post that suggested Assassin’s Creed Syndicate would have issues. It’s definitely beyond the initial list of 10 games that PlayStation provided in the blog post that wouldn’t boot.