The latest 1.2.11.0 is definitely managing VRAM correctly.
Running a 1080TI with 11GB VRAM, 32GB system RAM - Windows shares 16GB RAM with the GPU. Dell 3.3GHz Xeon.
Start with A400 at KLAX runway. End flight, keep sim running and start with Cessna at my local small UK airport (EGBJ); VRAM reduced by around 1GB (5 to 4 approx, which is 25%).
The A400 has a detailed cockpit. Switching to outside view reduced VRAM and visa-versa.
Esc, Q for Free CAM. Gain height pan around to downtown then sparsely inhabited areas and VRAM reduced, as expected.
Heading to the ocean VRAM dropped, as expected.
There seems to be integration (smoothing) over 5 seconds when freeing memory.
So VRAM is being managed sensibly with view complexity.
I’m a retired C++ developer and impressed by the improvements.