Without doing anything specific I have suddenly the location path of the desktop image written on my desktop like

**(3)/System/Library/CoreServices/DefaultDesktop.jpg**

On my 2nd Monitor it says
**(6)/System/Library** and so forth.

Its not clickable, changing the desktop image is changing the written path, but not the mentioning itself.
[![enter image description here][1]][1]

Any ideas?
My System
MBP 13" Mid 2018, (4 TB3 Ports and TouchBar)
2,7 GHz IC i7
16 B 2133 MHz LPDDR3
Intel Iris Plus Graphics 655 1536 MB
macOS High Sierra, 10.13.6 w/ security update 2020-003


  [1]: https://i.sstatic.net/B6qS4.jpg