Questions about LG SR-G3WU65AEU

You probably could, but I don't know if that would help the stability. I'm not much of a tinkerer. I don't notice it when watching TV from the front, only when I look at the device from the side do I see it

The product «SR-G3WU65AEU» is specifically designed for the LG OLED evo G3 and G2 series, not the G5 series. Therefore, it is not compatible with the OLED Evo G5 65". For compatibility, you should look for stands specifically designed for the G5 series.