I have the 75” and have none of these issues, there is a little issue with viewing angles but that’s only in dark scenes and if tv is placed on the stand below the eye level.No doubt the price is mouth watering and getting these large screen sizes is very pocket friendly but I had read certain issues regarding the brightness, anti-reflection, delay in motion interpolation, response time, colour bleed, viewing angle to name a few. And these just gave me to a second thought whether to go for it or not.
where are you reading about these issues? I would suggest you don’t rely too much on Amazon reviews they’re heavily biased and extremely subjective. Same goes for India reviewers on YouTube.