Heights doesn't automatically translate into victory, you can ask Pakistani Army about that. These heights have no supporting infra and it will take long long time to build some due to the terrain and it still won't guarantee a thing, we will still burry them on those heights.Question is are there any heights that china can use for it's advantage?
We live there, we have done it so many times, it's like back of our hand. Chinese have zero combat experience and zero combat experience on height.
I have said this multiple times and will say that again neither India nor China can win a war against each other due to geography. It handicap Chinese Airforce so badly and at the same time helps IAF which is a great equalizer. You can't roll your tanks down the himalayas and when Cruise or Ballistic missiles start to rain Chinese have already lost way more than India.
But they can create these headaches, try get few sq km here and there like a typical thug, they will lose if they fight.
Even PA can give them run for money, they have become expert in hiding after regular pounding by IA so they can survive Chinese assault and can take them down moving forward.