Massive GG. When I first decided to go for this golden myself I never would've believed that someone much better at the game than me would coincidently start at almost the same time but I'm glad it worked out that way. It may not have been the type of experience I originally expected or wanted but having someone to chat with about this weird niche golden as we both worked to find strats and get better at it was super refreshing. Thank you.
That's about the effect a very small black hole would have. The acceleration drops off with the square of distance, so if you experience 2g 1m away you would experience only a ninth of that 3m away. Obviously I doubt the map does it perfectly (and likely has a cut-off distance) but this type of seemingly extreme gravity change isn't completely unrealistic.