Oscillations while descending

Hi,

Specs :
Cube Orange ADSB
Antigravity MN5006
Tmotor NS18*6 Propeller
APD F40 ESC
Herelink
Here3 GPS
Tattu 14Ah 6s Battery

There are very noticeable oscillations in the quad when descending in Loiter and Althold Mode(attached log below)
I suspects Z vibrations are the reason
My props passby the motor mount very closely. See image below

Could this be the reason for my Z vibrations?
Also please comment on my tune. I haven’t tweaked with Loiter params yet

Log :GDrive File