Warning here, LG fucked one aspect of my B2 with the latest firmware 13.30.61.
I heard about VRR flickering issue way before buying tv and I was surprised that this issue was almost non existent on my tv - it only was visible on loading screens in some games, but then new update happened two days ago...
They overhauled main meny and start screen, added 4:4:4 pass through and convoluted some options in game mode but worst thing is that tv now shows vrr flicker in every game with HDR mode, only solution to this is to lock framerate to 50, 60, 100 or 120fps. This is true for both PC and PS5, in games with unlocked framerate (like unchated 4 on PS5 or spider man) it can be easily seen.
SDR vrr still works fine! What a bunch of fucks at LG, I hope they will fix this shit (I emailed them yesterday but I doubt they will read it). I don't know if other tvs other than B2 are affected but C2 and G2 probably got the same update.