If the issue does not affect everyone, and if you've used the assistant to re-install the firmware or even older versions of the firmware if available and the problem does not change, that would seem to make it a hardware problem not a firmware problem.
If older firmware is not available and you've reinstalled the latest and the problem persists, you have two choices, either accept it or send it back to DJI with proof there is a problem to get it repaired.
The assistant for the
DJI mini 2 does not allow you to re install firmware or downgrade which I would of done if possible which it isn’t.
it is very clear this is a firmware issue, from the fact it is effecting a large amount of people including as shown in the video, who also is an expert on drones with over 10k subs who would know if it’s a firmware or hardware issue which he has said is firmware, and I myself only had this issue after the update and on it had my drone a month and haven’t crashed it or damaged it in any way.
so that concludes it is a firmware issue even if some people are not noticing it such as yourself if you live in a hilly area where the horizon level can change or if your shooting down,
so it’s clearly something DJI need to address themselves without tons of people having to send their drone in for inspection when it’s a firmware issue looking at all the evidence and not having access to their drone for a month or so.