Can't remember off the top of my head. It wasn't anything to be too concerned over. I feel like SOMA had issues? Some games it made really stuttery like Dying Light. Uhh I think Beyond Two Souls remaster?
Beyond may have issues, I'm unaware one way or the other. But the
Dying Light thing you're remembering is not a bug introduced by Boost Mode, it's a weird consequence of how the game performs better. The game is double-buffer v-synced, which means it only allows framerates that divide evenly into the vertical blanking interval refresh rate of TVs. That is, the game can run at 20, 30, or 60fps, but not anything in between.
On standard PS4, this means the game is usually 30fps, because it can't ever reach 60. (There are also drops to 20fps when it can't hold at 30.) With Boost Mode, however, interior scenes are capable of briefly hitting 60fps, so they do so. But when it drops, it snaps all the way down to 30fps. This causes an extreme seesaw, which manifests as perceived stutter. Whenever outside, there's enough going on that 60fps can no longer be reached, and the game is a locked 30fps (the drops to 20fps are gone).
Double buffering is a pretty rare approach these days, so this shouldn't be a prevalent problem. And compared to Pro, the PS5 clockspeed increase is enormous, so games like
Dying Light might actually just peg to 60fps all the time.