The G2 is a bit poor with its Dark/Black colours, I’ve seen this in racing Sims (at night, obviously…!) and Elite Dangerous where Space looks slightly washed out, more Grey than Black if anything. Same with MSFS, it’s not quite right but that’s more the HMDs screen display than the Sim itself.
But that’s not to say MSFS it’s fine, it’s not. The daytime is a washed out mess at times (known issue and got worse with SU5) and for sure a bit of TLC with the night lighting wouldn’t go amiss.