I wouldn't say most.
It's just a lot of people wouldn't feel the need to jump on a forum and state that they did an upgrade and 1 of the many features still worked.
By the way I have a P3A and the VPS (and gimbal) have been fine on all firmwares.
I just did the updates last night and did a very short, low flight to test VPS. Took off on grass, hovered a bit and then over my driveway. The P3 was a little wobbly with and without VPS engaged due to wind. But overall very stable. I raised and lowered watching the VPS indicator turn on and off. No difference noted.
I then shot up about 100' or so and tested the Braking adjustment I did. All seemed fine. I hand caught it over my head due to mild wind gusts.
No Compass or IMU messing around for me, unless the app or DJI tells us to.