Agree shadows are more difficult in Eevee. In Eevee it is possible to have more detail control of GI shadow interaction by adding multiple/nested irradiance volume probes. I added contact shadows to fix the shadows for ceiling lights on the right.
The ceiling lights enclosures on the left I added single irradiance volume probe behind each enclosure for shadows.
The workflow should be one main irradiance volume for the room with a normal density. Then in areas where the lighting of the main IRV (irradiance volume) did not reach properly add small nested IRV probes. To improve shadows or lighting under furniture, behind items or in certain corner areas. Avoid overlapping the individual point probes between the multiple nested IRV.
Here is the update Eevee scene render improving GI, contact shadows and using multiple IRV for shadows on the ceiling light enclosures on the left. Still only 8 seconds.
