Question about PureMounts Pm-Tvs-02

The stand is compatible with the following mounting dimensions:
With VESA 200x200, 300x300, 400x200, 400x400, 600x400 and 35kg.

Your TV requires VESA 400x400 and has a weight of 22kg. So it fits.
Data according to data sheet: https://www.lg.com/de...