My Monitor had this propietary desk stand from LG. I wanted to be able to mount it to a cheap VESA monitor arm. So I designed an adapter which replaces the LG desk leg and enables you to mount a cheap VESA wall adapter to your monitor. I bought these for 7€ https://amzn.to/3FtP1YY and screwed it to my adapter.
Printed in PETG 0.28 Layer height and 4 walls with 25% infill.
I replaced the 4x 10mm M4 screws with longer ones (now 20mm)
You need 2 M6 screws to attach the wall mount to the 3D printed piece. Try 16mm and 25mm.
Now your monitor has its own VESA holes and I am able to hook it to a standard monitor arm.
Amazon had an adapter listed for this monitor but it was not in stock for years. Maybe some day someone will be in the same position like me and will find these files useful.
The author hasn't provided the model origin yet.