I did not say Do it all by yourself.
Forget a 65" TV. No sane person will attempt to mount even a 50" TV by themselves.
Unless it explicitly says do not install the TV yourself, you are allowed to do it. Seek professional help, if you cannot. Unfortunately the so called professional help we get are a bunch of dim witted people from god knows where.
The point I am trying to drive is back to your original query. You were doubtful about removal of the panel stickers. All it requires is reading some of the supplied documentation, before posting a query here. It saves your time.