So far we’ve been focusing on fixing those issues which make Lumen GI too dark indoors compared to the path tracer. We still have a lot of over-occlusion with small windows when using Software Ray Tracing and foliage. The Local exposure feature can help here too.
I do think we’ll be adding some ambient lighting controls for the problem you are describing, like allowing the skylight to leak in to a controllable degree (similar to how skylight + AO works). Thanks for your feedback.