How to block skylight in indoor environment?

Enabling properly built LPV in .25 renders similarly. With properly darkened interiors. Assuming the volumetric contribution is correct.
dfao also helps. Since I have cascaded shadows short.

The reason the component is needed is actually to counter how dark things get when you properly set it up and interiors display dark like they should.

The local PP would be to lighten an interior. not darken the scene while inside an already Darker interior.
Unless you do want to go for pitch black, if that’s your thing just put a 0,0,0 in the emission of the pp material. Problem solved.

I’m a photographer my screen is properly calibrated. The shadows are darker on purpose. Not because of the skylight. Not because that way the interiors are “darker”.
And for whatever it’s worth, this isn’t a game but a marketplace addon that deals in completely different stuff essentially unrelated to lighting.