Careful with that correction: It has been created with the LG in Rec. 709 emulation mode, but you should use a correction with the TV in its native gamut mode (which is close to P3), i.e. the “LG OLED 6-Series” correction.
Yes. The internal picture processing has evolved in the LG OLEDs, but I don’t think the actual panel spectral characteristics have changed much (or at all). So, the current 6-series correction, despite having been measured with a ColorMunki spectro (although at 3.3 nm high res mode), is currently the best we have (until people contribute specral samples measured with high end meters).