Installing electrical wires in the ceiling - From lamp to switch

I am just asking out of interest, the work is done by a professional (who is currently on vacation, so I am asking here).

Surely there are many different possibilities. But is it correct that a very common method in new construction is to lay as many/most empty conduits as possible in the ceiling and then only pull the cables through the empty conduits for all the sockets?

Presumably, all the sockets are pulled directly to the fuse box. But what about the lights? Do you lay the empty conduits for the lights directly to the place where the switches will later be? Or do you also first run these empty conduits to the fuse box?

It is about a "classic" electrical installation. No bus system, etc.

Regards

I'm not an expert...

A lot has already been laid in the ceiling here. However, right away with cables. I hardly believe anyone wants to unnecessarily pull cables through an empty conduit. Or are you talking about recessed lights? Usually, only boxes are planned for those. However, for us KNX installation.

If you're not doing KNX and also don't plan to "retrofit" it later, why would you then run all lamps to the distribution board?

No idea, it doesn't really make sense to me either, but I wasn't really sure.

One advantage could be to be able to switch lamps with different switches afterwards. Whether one will ever really need this depends on the redesign enthusiasm of the building owner(s).

In a traditional installation, you go directly to the switch - otherwise, no one in the distribution box can handle the huge amounts of copper.

In a classic installation, you go directly to the switch - otherwise, no one in the distributor can handle the enormous amount of copper.

Not only that, but the loop resistance also increases due to unnecessary cable length,