I think you should update the performance now that Nvidia has released a ReBar profile for their GPUs via the driver update provided today. It's been reported by 4090 users to add upwards of 20fps.
I know you put it's "enabled" on all supported systems, but it's not actually ON unless Nvidia has whitelisted the game in the driver, which it wasn't when you provided this test review. You can alternatively force it ON for all games using Nvidia Inspector, thus allowing it to be enabled for any game regardless of the Nvidia driver whitelist. Otherwise, saying it's enabled is somewhat misleading to readers that don't know this. AMD enables it ON for all games globally, Nvidia only when whitelisted by the driver. Like I said, you can force it on, which I think should be done for Nvidia if you're going to list it as enabled in the test setup.
Either way, the driver update that came out today enables it in the driver and provides for performance uplift for Nvidia across the board. Only fair to test it again since AMD already had ReBar enabled for their results.