I have had a look at your DJI Fly waypoint mission (the KMZ file). Here is a 3D view of it if it had been flown using Litchi. I know you did not use Litchi but I said this for a reason which I will explain later.
The waypoint file contains...
DJI Goggles Integra with Motion 2 Combo.
Used for 2 or 3 flights with my Mini 4 Pro. Just could not get the Integra Goggles to fit my head.
$200 you pay for shipping
Purchased from DJI. Padding has been upgraded to DJI Goggles Foam Padding...
Just got back from doing a test flight. Tried forwards, backwards and sidewards. Full and partial stick input. Bypass, no OA and Sport modes. Into the wind, down wind and cross wind. Didn't see any evidence pitch oscillations.
I feel cheated.
I use CsvView. It's free and can be obtained here
https://datfile.net/CsvView/downloads.html
First use the PhantomHelp Flight Log Viewer
DJI Flight Log Viewer | Phantom Help
Then download the .csv that it creates
Finally, submit that .csv to...