The question that was being answered (if you follow the chain of posts) is whether or not games will scale texture quality based on the amount of VRAM available, irrespective of settings used.
The answer including the link to the GN video that i think LTMatt posted, is Yes games engines will do that.
More testing is needed, but
@Grim5 is right, we will need to start checking to make sure games are not downgrading textures.
It is interesting how the past few pages have been steered away from this original point.