To determine whether the "OLW480B" wall mount is compatible with the LG 55EG910V television, it is essential to check the television's VESA specifications. The "OLW480B" wall mount is designed for televisions with VESA mounts of 300 x 300, 300 x 200 or 400 x 200. If the LG 55EG910V matches these VESA dimensions, then the wall mount should be compatible. If not, it will not be suitable. I recommend that you check the technical specifications of your TV to confirm compatibility.
I bought 2 LG OLED 2022 TVs, both with 200x300 vesa. One 55", which I mounted with a generic stand, and one 77" mounted with LG stand.
The LG stand is clearly better. It brings the TV much closer to the wall.
This stand is made for 200x300 (no modification needed), but can accommodate other sizes.
If I'm not mistaken, 2 types of screws (perhaps, M5 and M6) were included.
I would just check that LG states the vesa size is included, or that the TV is part of the TVs that can be combined with this mount.