You edited your post and added that video when I was already responding. On top, you didn't provide the url to the tweet, which is misleading.
Anyway, to summarize, DF missed RT on Series S:
And they're also saying the framerate dips on PS5 are related to checkpoints, ergo, they must be a bug since they improve when they restart the same mission. BUT NOT ALWAYS. So the difference remains, just not that often.
Edit: BTW, John is clearly the "slowest" of the group at DF. He's just no up to the task in comparison to his partners.
This Cod shit is not "massive". There were supposed to be a substantial difference between the PS5 and XSX on all multiplats according to fanboys. There's always an excuse when it's not working in MS favor. Now it's all about the tools.
When I was playing Cod:CW I didn't notice the drop in frames other than one section where you're running from the heavy machine gun fire in a building. What I did notice was the features of the Duel Sense when aiming and shooting all the guns.