I just came back here after watching the Digital Foundry video to link it, but see it already has been posted. The video has perfect examples of the issues I described in my original post regarding the framerate dip and stutter on the native PS5 version. I'm running the PS4 version on the PS5 and have been since trying out the PS5 beta and seeing how poor it runs. I'm disappointed that SE has not even acknowledged the issue in this thread.