Oh, I finished it already and got the true ending.
Just like Stalker 1, it pays to not blindly run at quest markers and make up your own mind.
The game is a treat, but struggles to run on many systems, so my recommendation is the following:
FSR 3.1: Quality (66% resolution scale)
Frame Generation: On
AMD Fluid Motion Frames 2: On
1440p Epic on a 7900XTX averages 60 FPS in busy towns like Rostok.
60 FPS Native -> 120 FPS FSR 3.1 -> 240 FPS AFMF
I’ve got a 240 Hz OLED (for the dark scenes), and the total video draw latency with all of that is 3.11 ms.
Put four pots over the squares over the ground.
Shoot the dragon head statues, the pedestals raise.
The pedestals make stone grinding sounds and…
Only one pedestal has raised, the pots have caused the animation to bug out and the game engine to assume that the pedestal is in the final position on the floor.
The floor position has the lever locked.
The game developer never anticipated what a massive idiot I was