The DJI Mavic Air 2 GPS used to work but after the firmware updates from DJI the GPS no longer works so I think the problem is in the firmware
This is my second DJI Mavic Air 2 already giving the same problem

Not seeing any GPS issues on latest firmware update on my Mavic Air 2.  Using both a Samsung Galaxy Tab S6 on Android 11 and a Samsung Galaxy S21 Ultra (Snapdragon processor) on Android 12.

Did you try to re-update the firmware via Assistant 2?  I usually update via Assistant 2 as I find it more reliable than updating via the Fly App.

Hope you get your GPS issue fixed soonest.

Hi! You might be better off posting your question in the 'products' section of this forum.  That is way more active.    -   https://forum.dji.com/forum-129-1.html