At this point, are you converting to mesh, applying modifiers, joining loose parts for most assets?
We did some of that with the buildings and signs. Traffic lights seem like a good candidates. Vehicles, HVAC, lamps, sky lights all seem similarly simple to me; I have a ‘probably can’t hurt, maybe it even simplifies’ mindset.
Kent highlights roof-access and water-tower as exceptions. Exceptions don’t make the rule. Later, he delicately suggests that we put everything in its own collection. It looks like most things are a single object, at that point.
So, direction please!: What are the guiding principles here? What should be converted/joined? Everything except roof-access, water-towers, and parametric-parts (this is my guess)? Does it matter, since we’re staying inside .blend? What good nugget didn’t I ask about?
Eric