I've had this and, after much searching, I discovered that the strip for the ambient lighting creaks against the dash.
It always appeared to come from the passenger side approximately in the glove box area.
Pressing on it replicates the sound and holding it when I'm the passenger stops it...
It may well be related to the new European cyber security laws that specifically relate to cars - maybe the complexity of the passwords had to be increased to comply? https://www.coro.net/blog/what-new-eu-cybersecurity-rules-mean-for-carmakers#toc-2114040-1
It is configurable but, some the software on my car was updated by Porsche, if I select the power meter in the display, it doesn't appear.
It worked previously but since the software update, it doesn't display in the HUD even when configured.
I have this and reported it to the dealers. It seems to be standard on all Macan EVs (unfortunately)..
It tilts down but the furthest it can physically go is still too high to see the curb.