Having got that off my chest, the Chinese have occupied the heights at spots where they had created issues during the last 90 days; the issues were older, but represented no friction whatsoever until this latest period.
At one spot, the Galwan Valley, the valley runs at right angles from the Shyok River and goes to the east for quite some distance (not pure east, but in a twisting, turning general direction that way). The Indian Army used to patrol up to some extent within that valley, and up to the heights (nobody then was interested in the steep treacherous heights); recently, the Chinese have gone into areas, on the slopes on both sides of the valley, where nobody had really ventured earlier, and begun their usual antics. They build tracks, pitch tents, patrol forward from those tents, firm up the road, use it to bring up earth-moving machinery, start building concrete structures - barracks, guard-rooms, armouries and the like - and declare that this is the new base-line and everything will be measured forward from that point onwards. This is what they did; they put up tents at a point where the Indian Army had enjoyed free access, and, while agreeing to take them away, mounted a murderous assault when an Indian party tried to remove the two tents.
So they are on the heights, it is likely that they will retreat, but the bad blood will remain.