@VoidmeatThanks. It was the only thing I could think of since I suspected frames were being reused (either that or this game has the most amazing 99th percentile frames ever!)
But you have a good point, I haven't submitted it in a bug. I would be surprised if they haven't see it here or on Reddit, but I'll do that.
Also, if anyone wants to reproduce, they can do the following:
Install OBS
Install VLC
Set OBS's video recording to Fractional with numerator of the refresh rate (mine is 144) and Denominator of 1.
Set a recording hotkey (I used screen lock). Adding this since some people say tabbing out messes up vsync.
I would recommend setting the graphics to low and 1080p to reduce the CPU and GPU load as much as possible.
Load up the practice arena, do a couple tight loops to ensure the textures have time to load and then start recording.
Load the recording up in VLC and press E to step through.
It's not perfect, but it was the closest I could think of since FPS and frame times were not matching the observations.
Edit: The report bug option just brings it here with the new topic report bug form. It would just be a dupe of this thread, so I'll assume they've see it by now 😉
The post is #112 - https://answers.ea.com/t5/Bug-Reports/Refresh-Rate-bug/m-p/9548543#M1320